Significant delay 'choosing' .mov file

[fitzgerm]

In Final Cut Pro 4 I export to a .mov file and then use ffmpegx to produce a muxed mpeg2 file. The issue is that it takes several minutes for the program to respond after I 'choose' the .mov file. These are 20GB files roughly that I have saved on my desktop. Is there a better place to save these files for optimization and is this delay typical. The first time it happend I thought the program was hung. Thanks.

[major]

When selecting a file, ffmpegX perform a check on it so if it is very huge, this can take some time. There is a way to avoid this, though, by manually entering the filepath in the Open.. field.