I had a 40 minute video and using QuickTime Pro, I cut out a 5:19 segment and saved it as a self-contained video. (From WMV to MOV) Original Video Specs: Audio: Codec - Windows Media Audio 2 (WMA2) Channels - Stereo Sample Rate - 44100 Hz Bits per Sample - 16 Video: Codec - Windows Media Video VC1 (WVC1) Resolution - 1920 x 1080 Frame Rate - 29.970088 The original WMV video plays choppy in QuickTime and Quick Look, but fine in VLC and Plex. The saved 5:19 MOV file is choppy in QuickTime and Quick Look, VLC doesn't load it, and Plex crashes while loading it up. Have I done something wrong? Are there some other (better) media players out there or is there a plugin that will fix this? Thanks.