Sorry for the delay in the reply. I have a number of different clients that are sending me these files, the files that I am having trouble with tend to be close to an hour in lenght. Most are Mp3, some are wav files or wma. When I listen to them in Real or Windows Media Player they are the full length. I am not sure what they use to create the files since I am not able to direct them at all in their creation of the audio. We only use Windows (XP machines) to do this work, although I believe a few of the staff will soon be migrating to Vista.
Many thanks,
Sarah