Apple's next iPhone-iPhone 4S is coming. With a dual-core A5 chip, iPhone 4S is also sporting a 3.5-inch (diagonal) widescreen Multi-Touch display. The 8MP camera with all-new optics also shoots 1080p HD video. And with Siri, iPhone 4S does what you ask. Moroover, the Apple's lastest handset supports 1080p HD video playback with 960-by-640-pixel resolution capacitive display, which will bring you an exciting movie enjoyment.

In fact, not all HD videos can be played on iPhone 4S due to its limited video format. The iPhone 4S now only support H.264, MPEG-4, Motion JPEG (M-JPEG) in .m4v, .mp4, and .mov file formats. And playing high profile encoded videos on iPhone 4S will be choppy, jerky and stuttery basically due to its baseline/high profile encoding limitation. If you just some movies and TV shows in MKV format, you may want to transfer and watch these MKV videos on iPhone 4S. Actually MKV is container format which can hold unlimited number of video, audio, picture or subtitle tracks inside a single file, ca't be played on the iPhone 4S. Here it mainly tells an easy way to put and play MKV videos on iPhone 4S with high quality by using an easy-to-use yet professional iPhone 4S Video Converter-Pavtube Video Converter (or Pavtube Video Converter for Mac). It can help you convert MKV to H.264 and MPEG-4 encoded mp4 format for iPhone 4S with high quality at fast speed. Below is how.

Guide- Convert/Transcode 1080P/720P MKV videos to H.264 .mp4 compatible with iPhone 4S and then transfer/sync them to iPhone 4S.

1. Make Sure the MKV to iPhone 4S Converter installed on you computer. If you are operating a Mac, you can try Mac iPhone 4S Video Converter.
2. Load MKV files to the program. Besides MKV, you can allowed to import 1080p videos in AVI, VOB, TiVo, AVCHD MTS/M2TS, MXF, MOD, EVO, etc.
3. Choose output format. Click on "Format-> iPhone -> iPhone 4 MPEG-4 640*480 (*.mp4)".
4. Start MKV 1080p/720p to iPhone 4S MP4 Coversion by clicking on "Convert" button.

Once the conversion process is finished, just stream/transfer MKV videos to iPhone 4S. Please make sure the video files you plan to put to iPhone 4S are not more than 4GBs due to the Apple smartphone's file size limitation.

See, now you will get your 1080p/720p MKV movies on iPhone 4 for smoothly playback.

The following guide tells the detailed operating steps of  how to convert MKV to AVI. Please feel free to see if it is helpful for you.
Step 1: Free download Pavtube MKV converter, install and run it.
Once run it, click “Add” button to load your MKV files. The MKV to AVI converter supports batch conversion, so you are allowed adding several files into it to convert at a time. Meanwhile, if you wanna combine multiple MKV files into a single file, you can tick off the checkbox “Merge into one file” to achieve the goal.

Step 2: Select AVI as output format
To convert MKV to AVI, you just need select AVI as output format. Please do as below:
Click on the dropdown menu of “Format” and then hit “Common Video” to choose either DivX AVI or Xvid AVI as output format. BTW, if you wanna generate HD AVI file, then you need choose an AVI format under “HD Video” option.

Step 3: Set advanced settings
Before converting MKV to AVI, Pavtube MKV converter allows users adjusting audio and video parameters to customize the output file quality. Click “Settings” button, then you will be able to adjust settings in the following window, including codec, aspect ratio, bit rate, frame rate, sample rate and audio channel.

Step 4: Convert MKV to AVI by using MKV to AVI converter
Click “Convert” button to start converting MKV to AVI. Pavtube MKV Converter is able to complete conversion at speed with excellent output file quality. Once the conversion is done,
you can click “Open” button to get the converted AVI files with ease.

Software you'll need: Pavtube MKV Video Converter
Step 1. Load H.264 MKV to the Pavtube MKV Video Converter
Have the Pavtube MKV Video Converter installed on your computer. Run the app and click “Add” button to load source MKV files. The MKV converter works with MKV files encoded with H.264, Xvid, AAC, AC3, and more codecs and supports batch conversion. So just load your MKV files to Pavtube mkv Converter.

Step 2. Select Xbox 360 optimized output video format.
Click on the “Format” bar and find “Zune/ Xbox 360 Device” group. There are three formats for Xbox 360. Select “Xbox 360 Video – Windows Media Video (*.wmv)” or “Xbox 360 Video (640*480) (*.wmv)” if the source MKV is SD video of 4:3. If the source H.264 MKV is 1080p or 720p high definition video, the optimal video format is “Xbox 360 HD Video (*.wmv)”. This format creates 1280*720 WMV HD video with 5.1 surround sound in perfect sync.

Step 3. Convert MKV to Xbox 360 playable HD WMV videos.
Click “Convert” to start converting MKV to Xbox 360 customized WMV HD files. When the MKV to Xbox conversion completes, click “completed”, back to the Pavtube Video Converter interface, and click “Open” to find converted WMV HD videos for streaming to Xbox 360.

Tips and tricks:
1. Wanna avoid quality loss when converting MKV to Xbox 360 videos? Set a higher bitrate before MKV to WMV conversion starts. Simply click “Settings”, find “Bitrate” in Video column, and set it to “high quality”. Or you may type in a bitrate the same with original video. The “Profile Settings” panel provides you detailed information of source and target video file.
2. The converted HD WMV file will not play by Xbox 360? Check the file size. Microsoft set the maximum file size to be 16GB in their Xbox 360 program. Make sure your output file not exceed 16GB. If a file is too big, set smaller bitrate or split it to two or more with the “Edit” feature of Pavtube MKV Video Converter.
3. Dissatisfied with the conversion speed? Try H.264 MP4 format which also works on Xbox 360. Keep in mind that Xbox 360 like 1280*720 more than 1920*1080. The H.264 MP4 format gives you AAC 5.1 and Dolby Digital surround sound, and works with PS3 (see how to convert MKV to PS3). The conversion speed could be 3X faster in case a CUDA supported graphic card is installed.
4. Get a track of wrong language? Click “Properties” and select a desired audio track from the drop-down list of “Stream ID” box before the MKV to Xbox 360 conversion starts.
5. The trial of  Pavtube MKV Video Converter produces video with a Pavtube logo on the screen and you can purchase a license to get rid of the watermark.

Before we start, you may also wanna know the details of Samsung Galaxy S supported video and audio formats:
Video: HD Video Player & Recorder (1280 x 720) @ 30fps codec: DivX, XviD, MPEG4, H.263, H.264, WMV, VC-1 format: 3gp(mp4), AVI(divx), MKV, FLV, H.263Sorenson
Music: Music Player with SoundAlive. MP3/AAC/AAC+/eAAC+/OGG/WMA/AMR-NB/AMR-WB/WAV/MID/AC3/IMY/FLAC/XMF

Step-by-step instruction:

How to convert MKV videos to Samsung Galaxy S Tab and smartphones

Step 1: Free download Pavtube MKV to Galaxy S  Converter, install and launch it
Click “Add” button to import the files which you wanna use as movies for Samsung Galaxy S, such as MKV. The program supports batch conversion, so you are allowed to add multiple files into it at a time.

Step 2: Select output format for Samsung Galaxy S
To transfer  MKV videos to Samsung Galaxy S Tab  for playback, you just need select a format for your Samsung Vibrant, Samsung Captivate, Samsung Epic 4G, or Samsung Fascinate. Please do as below:
Click on the pull down menu of “Format”, and then follow “Android”> “Samsung Fascinate MPEG-4 Video (*.mp4)”. Please notice that the format optimized for Samsung Fascinate is also available for all the other Galaxy S phones, including Samsung Vibrant, Samsung Captivate, and Samsung Epic 4G.

Step 3: Customize video and audio settings
To convert MKV format  to Samsung Galaxy S Tab, Pavtube MKV to Galaxy S  Converter allows users clicking “Settings” button to customize video and audio settings. The adjustable options include codec name, aspect ratio, bit rate, frame rate, sample rate and audio channel.

Step 4: Transfer MKV format files to Galaxy S
Once the above mentioned 3 steps are finished, you can click the big button “Convert” to convert MKV videos to Samsung Galaxy S Tab.Pavtube MKV to Galaxy S  Converter is able to finish conversion at super high speed without any audio and video out of sync issues. Once conversion is completed, you can click “Open” button to get the converted movies for Samsung Galaxy S Tab for more fun. Hope it helps.

Maybe you download many Animes on you Mac, but they are MKV or other format dont be play on iPad,iphone,ipod ect. Now i recommend you  the  best MKV to MP4,MOV Converter Software - Pavtube  Mac MKV Video Converter. With the best MKV Converter for Mac, No subtitles problems.

Do you have tons of MKV files, but yet have  been never able to convert them into a proper video file for your new iPad/iPad  3G on Mac? If so, this article is  deserved reading on, because it aims to tell you how to convert MKV to a  playable format for iPad, so that you can enjoy your MKV movies on that wider  display in high quality.

How to convert MKV to mp4,mov on Mac and watch download anime on ipad,iphone,ipod.

Step 1: Click "Add" button to load download anime MKV files into Pavtube  Mac MKV Video Converter.o

This Mac MKV to iPad converter supports batch  conversion, thus you can add multiple MKV files to it at a time. More than  that, if you want to combine all the files into a single file, you  should tick the checkbox "Merge into one file" to achieve this goal.

Step 2: Select output format for iPad/iPad 3G

Click on the pull  down menu of "Format" firstly, and then you will see there are an "iPad"  option, and three sub-presets optimized for iPad. You can select anyone of the  three profiles to meet your requirement. All of them will guarantee you a  perfect playback quality on your iPad and iPad Wi-Fi+3G.

Step 3: Set advanced settings

Click "Settings"button, then the interface as below will show up,  you are allowed to adjust video and audio parameters shown on it,  including codec name, bit rate, image pixels, frame rate, sample  rate, and audio channels. However, we suggest you to skip this step, because the  default settings will absolutely ensure the excellent playback quality on your  wide screen iPad.

Step 4: Start converting anime  MKV files to iPad and iPad Wi-Fi+3G  supported format

As soon as all the above three steps are  finished, you can click "Convert" button to start converting MKV  files to iPad compatible format. Once finished,  you can click "Open" button to get the output files. Now just add these  converted MKV files to your iTunes, and sync them to your iPad for watching.

There are many Japanese animation cartoons are MKV format which including English subs. Do you want to put these your favourite animated cartoon videos to portable devices like PSP,iPod Touch,iPhone 4, Zune, Archos,iRiver ect ? But some of them dont support MKV format. Now let's convert MKV files to MP4 with Pavtube MKV Ripper Converter in three steps.

Step 1. Launch Pavtube MKV Ripper Converter and import anime  MKV files
Import MKV format videos for converting into the file list by clicking Add button. Check one of them and click Play button to preview it.

Step 2. Select output format
Now let’s set output settings: click Format bar and select any MP4 format you like as output profile in the expand format list. Then click the small folder icon to determine Destination folder for the converted MP4 files.

Step 3. Start converting MKV to MP4
The program supports batch conversion so you could check all the files you want to convert in the file list and finally click the big Convert button to start the conversion. Generally speaking, you can get an .MP4 file of 1G within 20 minutes.

Other Features:

• Add text, image, and video watermark

  Its watermark function allows you to add different watermark types, including text, image (including GIF), and video watermark. Its video watermark function will add a picture-in-picture effect on your video.

• Trim, crop and merge video

  The Pavtube MKV Ripper Converter allows you to trim, crop and merge videos. Trim function allows you to get a specific length of video accurately; while crop can help you cut off the black edges and unwanted video area easily, so that you can enjoy a wider screen on your portable devices like iPod, iPhone. In addition, check the option “Merge into one file”, you can join multiple videos into one bigger file for conversion.

• Capture thumbnails

  The Pavtube MKV Ripper Converter provides you the snapshot function, which allows you to capture the thumbnails as your wallpapers or editing elements for future use.

Although MKV files have been one of the most popular video formats, most portable devices, video players, video editors, etc. do not give native supports to them. Therefore, it’s necessary for us to convert this format to many other media formats, so as to play or edit them without trouble.

How to convert MKV to other video formats like MP4, FLV, AVI, WMV, 3GP, etc?

Software you need: Pavtube MKV Converter

Step 1: Click “Add” button to load MKV files.
Step 2: Click the drop-down list of “Format” to select an output format, which format to select depending on your end use of the generated files. Meanwhile, click the folder icon at the end of “Output” to specify a destination folder.
Step 3: Click “Settings” button to adjust video and audio parameters like aspect ratio, bit rate, frame rate, sample rate, etc.
Step 4: Click “Convert” button to start convert MKV to AVI

Tips:
1. If you want to combine multiple MKV files to be as one file, please tick the checkbox “Merge into one file”.

2. Click the camera icon, and then you can take screenshot of the playing MKV file, after that, click the folder icon on the right side of this icon to get the screenshots.

3. Click “Edit” button, then you will be led to the editor interface as below:

The “Crop” function allows you cutting off black edges and the unwanted areas of the original MKV files.

The “Trim” function enables you to set the exact duration of the video clip. You can set the "Start” time and "End" time, or you can directly drag the slide bar to the time points as you like.

Through using “Text Watermark” and “Image/Video Watermark” function, you are able to add your preferred texts, pictures, even GIF animations and videos to be as your watermark, in that way, the “Picture-in-picture” effect will be realized beautifully.

The “Effect” function permits you adjusting the effects of your MKV files, including “Brightness”, “Contrast”, “Saturation”, and adding special effects like “simple gauss blur”, “Simple laplasian sharpen”, flip color”, etc. to your videos.

“Audio Replace” function makes it possible for you to take place of the original audio with your specified audio source.

Converter. The converter, which is one of best DVD to Apple TV transcoding tool, is very easy of use. Follow this

guide and you will learn how to proceed the conversion with simply a few clicks. Now let’s step through the

conversion.

Step One. Run DVD to Apple TV Converter and

load DVD.
Launch Pavtube DVD to Apple TV Converter for Mac and the interface below will pop up. The source DVD movie

could be loaded either directly from the disc or ISO image file. Click ‘DVD Folder’ to import movie from DVD. All the

chapters are listed in the file list area and checked by default. You could double-click on a chapter if you would like

http://www.wikipedia.org/

to preview it. Right below the file list area there are ‘Subtitle’ and ‘Audio’ option where you can specify subtitle and

audio track. (Note that some chapters have no subtitle or audio). Make sure all your desired chapters are checked.

Also, you may uncheck those unwanted chapters like titles and menus.

Step 2: Set Output format.
Click on “Format” bar to specify output format. Follow ‘Apple TV’ and select a proper format from the list. Here you

will find MPEG-4 512*384(*.mp4), MPEG-4 720*432(*.mp4), H.264 720*480 AAC (*.mp4), H.264 AAC 1280*720

(*.mp4). Typically I would recommend you to choose H.264 AAC 1280*720(*.mp4) for your HD TV so as to save

space and fit for the screen.

If you’d like to further customize video and audio parameters, please click “Settings” button. Here you could adjust

video codec, audio codec, frame rate, bit rate, video size, audio channels. For instance, you can change the video

bit rate to 5000kbps, audio bit rate 160kbps for better output quality, or input 960*540 as video size. Do not forget to

click on “OK” to confirm your settings.
In ‘Export to’ box you could specify destination for the converted file.

Step 3: Start ripping DVD to Apple TV.
Click on “Convert” button to start ripping DVD to Apple TV friendly format. The converter will generate files with admirable video quality.

After conversion you can click ‘Open’ button to locate the converted files. Sync them to Apple TV with iTunes and

then you can enjoy the ripped movies on HDTV freely.

Small Tips:

1.Thumbnail- click ‘Snapshoot’ button when previewing the video. Click ‘Option’ to set the image format of

screenshots.
2.Deinterlace- click ‘Editor’, switch to ‘Effect’ tab, find ‘Deinterlacing’ box, and check it to eliminate interlacing lines.
3.Combine files together- check the files to be merged in file list and check ‘Merge into one’ box beside ‘Settings’

button.
4.Trim a section of the movie- click ‘Editor’, switch to ‘Trim’ tab, and input time point in start and end box.
5.The higher quality you set, the longer time it costs. The resolution 1920*1080 is for HD DVD and Blu-ray disc

ripping, the best resolution for standard DVD ripping is 1280*720.