You never know which one AVC refers to though, and the concept/issue is the same either way.
I don’t know that this is the cause, I’m just describing what I experienced. The container issue can be easily resolved as there are a lot of .mkv videos out there to test.
Thank you The UnUsual Suspect for confirming it. I hope the fix will be coming as fast as possible. I really love the new skin. And I love MPCStar. 
Same problem here. I found this problem since i upgrade to v5.1
MpcStar just hang when i try to play mp4 file.
screenshot: http://img862.imageshack.us/img862/4382/mpcstarerror.jpg
I can play this file properly on KMPlayer, Windows Media Player and QuickTime.
System:
Windows 7 Ultimate 64 bit
CPU 6500 2.93GHz
RAM 4 GB
More information. I’ve roll MpcStar back to 5.0 and it works properly. This is v5.1 problem for sure.
Same problem here. I found this problem since i upgrade to v5.1
MpcStar just hang when i try to play mp4 file.
screenshot: http://img862.imageshack.us/img862/4382/mpcstarerror.jpg
I can play this file properly on KMPlayer, Windows Media Player and QuickTime.
System:
Windows 7 Ultimate 64 bit
CPU 6500 2.93GHz
RAM 4 GB
Same problem here.. I rolled back to Ver. 5.0 to get rid of it.
Still a problem in 5.4… kind of annoying, rolled back to 5.0 and they all work perfectly fine oddly enough.
Running Win 7 64-bit.
Problem seems to be with h264 mp4s.
On 2011/5/14 at 5:40 PM, jjbladera said:
Me and my roommate upgraded the player. We totally like the new MPCStar 5.1. But then came the problem, me and my roommate, who is also using it, can not play mp4 file format.
When I play it in 5.1, the video is just stagnant, a freezing picture while playing. And sometimes, when I close it, it will not respond anymore.
When I downgraded it to 5.0 and tried to play it again, it played smoothly. I also tried to play it in VLC Player and KMP Player, and it played very smoothly again.
I hope a quick fix for these will be posted.
[uPDATE]
File used: Lady Gaga - Born This Way [2011] HD 1080p.mp4
Frame width: 1920
Frame height: 1080
Data rate: 3146 kbps
Total bitrate: 3271 kbps
Almost all my video files are in the mp4 format.
Sorry to bother you man but you seem to know a lot about MP4 playback issue right? I also have a problem of MP4 playback which I downloaded from YouTube yesterday. and i would like to as you whether you know how to solve the problem? The video i downloaded couldn't be played on VLC media Player. I downloaded this video repair program ([http://www.videoconverterfactory.com/tips/repair-mp4-file.html](http://www.videoconverterfactory.com/tips/repair-mp4-file.html)) as you can see, to repair mp4 file. In the article it mentions that i can fix video by converting formats. I do not know how it work, but after I added my MP4 video into the program, it asked me to choose a codec. There were 2 , H264 and MPEG4, i do not know which encoder to choose. I also find another type of file named .MJPEG on the internet and I do not have any ideas what are the relations between them. The original video which i downloaded is MPEG4, but it does not work as i have said just now. As for H264, i also know that it is a highly compressed encoder, so i am worrying about that there might be some dramatic quality loss in the course of conversion, is that true? The video is 720P- 60fps and i dont want to decrease the video size by changing video output quality and decreasing it to 30fps which is less smooth. How should i repair a video without changing codec?
Getterbech - the poster hasn’t been here for the last 6 years so it’s very unlikely that he can be of any help. It’s never a good idea to stick a ‘me too’ post on a long dead thread
Necroposting = “poo-poo” / no-no… Sorry.