QUOTE(Nick Jr III @ Dec 27 2002 - 01:37 PM)
A question to eXpanium owners:
Does this player support Quicktime MP4 ?? (256kbps LC).
No, it can't (although I'm not an Expanium owner).

QuickTime 6 Pro produces *.mp4 files only, so no MPEG-2 AAC capable hardware player is able to read them. Maybe you could extract an *.aac file from the *.mp4 file with mp4creator (available at RareWares), so that you won't have to use another encoder than QuickTime, but I'm not sure about this.