I also had problems of playing MP4 on my iPad 3. The MP4 files were ripped from handbrake. Luckily, I found the step-by-step guide on how to play MP4 on iPad 3. I posted the link here:
Hope it can also help you.
WMV, or Windows Media Video, is a compressed video file format developed by Microsoft. The most important aspect of a WMV file is that its format allows large video files to be compressed while retaining their high quality. They may be of any size and may be compressed to match any bandwidth (connection speed). Therefore WMV video becomes very popular among video lovers to save media data. However, the format is not as popular on devices like iPad 4 as it's said to be. So if you have a lot of WMV files and want to play the files in WMV on iPad 4 (iPad 3 included), you need to convert WMV to iPad 4 compatible file format first.
According to iPad 4 tech spec info on apple office site, we can acknowledge that iPad 3 only read video in MOV, MP4 and M4V. Therefore WMV has to be converted to iPad 4 MP4 or other format for the playback. To get a satisfying result, for instance, loss-less video quality, quick conversion, simple converting process, you'd better ask a professional tool for help.
Google search one m4v software, convert WMV to m4v for you ipad. For example : https://www.google.com/search?hl=en&newwindow=1&safe=active&noj=1&biw=1440&bih=7 13&q=http%3A%2F%2Fwww.brosvideo.com%2Fm4v-converter.html&oq=http%3A%2F%2Fwww.bro svideo.com%2Fm4v-converter.html&gs_l=serp.3...14356400.14356400.0.14356618.104.22.168 .0.0.0.0.0..0.0.les%3B..0.0...1c.GxltbWYWtLc
I heard the Azul Media Player can directly play WMV videos, even 1080p WMV files. It only cost $0.99.
If the player doesn't play WMV well, you'd better convert WMV to iPad's native formats.
iPad 3 Video Formats: H.264 video up to 1080p, 30 frames per second, and .m4v, .mp4, and .mov file formats
Tip: You should convert WMV to H.264 .mp4 or M4V, MOV
I have the Ipad3. I needed to download a file I uploaded to YouTube. I download the file to my computer. It is in Mp4 format. I then used FileBrowser to upload the file to my ipad to see if the file would still play even with the mp4 file extension. Works great. Next is to see if the camera connection kit will see the file. I have tried copying a MOV file created by Pinnacle Studio from my NAS storage to a SD memory card to import back into my ipad. The camera connection kit does not see the file. I still can upload the file by using FileBrowser or FileExplorer and then the same MOV video file plays on my ipad3 just fine. I don't understand why the camera connection kit will not read the file when the ipad will play the file. I also have problems uploading my final projects to YouTube through Pinnacle Studio. So I go directly to YouTube and upload my final projects from there.
I have been strugging with the non-compatible MP4 on ipad for a while and just figured out the best way (in my opinion) to solve the problem. There is an amazing free application named "DirectPlayerHD" in Apple store. Download it and follow the instruction for "Wi-Fi File Transfer" to upload your files. Then you can play your videos of any format on iPad like a breeze.
Okay. So you get your ipad photo connection kit and insert your sd card with the mp4 movie file you copied earlier. Unfortunately you are frustrated because the ipad will not upload the file. The reason is normally two fold. 1. The file name is to long. 2. The file is not in a folder the ipad can recognise. So here's what you do. Creat a folder on the sd card using capital letters named DCIM. Now put your file in there and make sure the file name contains no more than 8 characters. Now insert your sad card into the camera connection kit. Look through the files on the card until you find your video file. You probably won't see a name, just the hrs min label against the file. Now select import. When the file finishes loading (the tick box turns green) you can remove the sad card. Now go tour photos library on your ipad. Look for your file. Click on it and play it. You can if you have a Apple TV, select Airplay and watch the the video on your tv. Well I hope you find this helpful. It's my 1st ever post so gently on me.. Cheers
iPad only support MP4 encoded with MPEG-4 or H.264.
If your MP4 is encoded with other codec, it will not supported by iPad.
In order to play all MP4s on iPad, iPad2, iPad 3, iPad 4, iPad mini, iPad Air, we need to convert MP4 to iPad default codecs. iDealshare VideoGo is just the right software to convert MP4 to iPad default codecs. Besides iDealshare VideoGo can also convert other formats, like WMV, AVI, MOV, VOB, MKV, MTS, MPEG, 3GP,etc. to iPad supported MP4.
Why Can't Transfer MP4 to iPad?
We all know that MP4 is a container which is used to store video and audio, but can also be used to store other data such as subtitles and still images. So this format contains various kinds of audio and video codecs. However, iPad has strict limitation on the input MP4 file: only compatible with H.264, MPEG-4 or Motion JPEG video with the following specification:
1. H.264 video up to 720p @ 30 frames per second
- Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
2. MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels @ 30 frames per second
- Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
3. Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels @ 30 frames per second
- Audio in ulaw, PCM stereo audio in .avi file format
I know a step by step guide on how to convert MP4 to iPad/iPad 2/iPad 3/iPad 4/iPad mini supported video format.