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Posted: **Thu Sep 22, 2011 8:24 pm**

I am running OS X Lion.

So I used MakeMKV on Brides Maides which was created successfully at like 34gbs. I then opened Handbrake to convert to .mp4 and it made it fine. However; when I open the file I get this error: The document “title00.mp4” could not be opened. The movie's file format isn't recognized.

This has happened with a few Blu-Rays and I can't seem to figure out why because all my other blu-rays movies work and when they are made into a .mkv they play just fine just some seem to fail after handbrake.

Thanks!

Posted: **Thu Sep 22, 2011 8:41 pm**

How big is the Handbrake file?

SC

Posted: **Thu Sep 22, 2011 9:06 pm**

This is not a MakeMKV question; it belongs in MKV file processing and playback.

Also, in HandBrake, make sure "Large file size" is enabled or make sure your settings results in an output file < 4 GB.

Posted: **Thu Sep 22, 2011 10:40 pm**

file size is anywhere from 3.2gb - 6gb. Only select movies have issues though, not all.

Posted: **Fri Sep 23, 2011 7:35 pm**

checking the Large File worked. Thanks for the tip!

www.makemkv.com

.mp4 won't play???

.mp4 won't play???

Re: .mp4 won't play???

Re: .mp4 won't play???

Re: .mp4 won't play???

Re: .mp4 won't play???