I'm going nuts here. I've got the quicktime trailer for Sin City, and i'm trying to get it into an MP4 format for my PSP. I've tried exporting to MP4 with every imaginable combo of options from within ...

These days, most PCs and Apple devices can handle both MOV and MP4 files, at least to some extent. However, the need to convert MOV video files to MP4 files has not diminished.

Users have reported issues playing back some MP4 that are encoded using QuickTime with high quality in iTunes 6.0.4. One reader writes: "I have discovered since 'upgrading' to iTunes v6.0.4 that about ...

Hosted on Google Code, Subler (by Damiano Galassi) is an open source application for Mac OS X that enables you to mux .mp4 files. For those who don’t know mux (from multiplexing), it’s a device that ...