Some files in the same download batch are being recognised by Quicktime while others are not.

Same here, only I can't get any files to play. Quicktime reports " Error-2048: The file is not a movie file".
I'll check for Quicktime updates first, but I'm running the current version of Quicktime Pro.
I'll reply if a come up with a fix.
Regards
Larry

OK, update to 7.1.6, I can play the Quicktime movies. Funny thing, when WinZip extracts the files, it extracts two files for each title. One is a Quicktime movie and the other is not.
Anyone know what the other file is?

Larry,

See my reply to you in the "slow download" thread.

Donna

Please note that the latest QuickTime Player is v. 7.2 - windows users have experienced audio problems with the previous versions

CS

IF you are having trouble with Quicktime, check your downloads for duplicates of the same titles - one will open with Quicktime and the other will not. In some download 'packages' I have had as many as three repeated files - a total of six.

On a windows machine you can use the open source software Media Player Classic.
Works fine with the files that have audio problems in Quicktime.
http://www.free-codecs.com/download/Media_Player_Classic.htm