I have had the same problem. I have a transcription service and several of the MTs that work for me use the version 4.05. I had one file that was 18:58 long, and when loaded, was only 10:45. I got each and every one of my MTs to test it in their version, and each and every one had a file of 10:45 when loaded, although the download sizes were all the same. When the installed the old version that I sent them and loaded that file, it came up with the proper duration. There is something seriously wrong with version 4.05. If you need an old version, please let me know. I'll send it to you - it seems to be working perfectly. If you have found a solution to this that I don't know about, please let me know.