Version 1.3 runs well under OSX 10.3.7.
(Try some practice runs with it to get a feel for how it works. It is fast in its processing.)

The time that you enter for splitting point (hh:mm:ss) -- in the "Split Position" Edit button -- results in the split taking place about a second or so before the time you entered (depends on complexity of video at that point). Keep this in mind, it may take a try or two for you to get exactly the spot you want it to cut.

The preview feature it has is useful, though likewise, it may show screen image of a second or so after where split actually takes place.

"Yup. Set the splitting time at zero second, hit the split button, discard file #1.. File #2 should work. (6/10/2004, Version: 1.3)"

This is important, either the developer should bug-fix the programme or put the above as a FAQ in their website.

Explicit worked perfectly for the Divx4 files created by FFMpegX.

But the 'zero' issue arised for file created by Handbrake. They are AVI/MP4/MP3 file using XviD codec under Handbrake.

works great, just as expected.

i tried splitting a movie file (.avi, mpg4 video compression, MP3 audio compression). The program thought my 1.35Gb file was 0 seconds in length and wouldn't let be create split point anything over 0 seconds. it created a 12Kb file and a 1.35Gb file. it doesn't seem to work but maybe i'm doin sumthin wrong. anyone got any ideas?

This app works fantastically. I had previously been using mencoder on the command line to split avi's but this is far more convenient. It's also the only app of it's kind i've tried that actually works!
A quick note for improvement however: It would be very useful to be able to set the split point in MB rather than time, i.e. to make splitting movies for specific media sizes easier.
Thanks for a great and useful app.