I've just gone through the lengthy process of modifying tags in every one of the classical tracks in my music collection to find that only a few out of 4000 files had the modified timestamp changed. Checking a random sample of files using MP3Tag indicated that the relevant tagging had changed but the time stamps were all different and not the current date. "Modify timestamp when updating tags" is checked in the Library Options.
For a further test, in MediaMonkey I added 10 rows of "N" to the comments of 10 tracks and saved them, the file time did not change nor did the file size. I then opened the same ten tracks in MP3Tag and found the 10 rows of "n" in the comments of each track. Using MP3Tag I then deleted the comments and saved the files. The file time changed to the current time. This test was conducted twice once with FLAC and once with MP3 files.
I notice this was happening because backing up of the files from the NAS drive to a usb drive was occurring too quickly. This is a huge issue if files aren't being backed up because the time stamp remains unchanged.
The system info:
+ MediaMonkey 4.0.0.1439
+ The files are stored on a ReadyNAS DUO running Sparc-Linux.
+ PC running 64 bit Win 7 Professional

