Hi. I am having the same issue (symptom: many empty folders created when "Copy All Tracks" is attempted), except that some of my files will transfer correctly to the computer (to be precise: 13 of them, out of the 375 on the device), and my device is a NW-A608. I am running GYM 1.12 (the non-beta), in Windows XP Pro, and have already followed the instructions on the GYM site. After reading this thread, I also installed Windows Media Player 10 with no problems, but it did not solve the issue. After googling the problem, I also installed version 2.01 of the firmware from Sony Japan (although that was not prescribed in any way as a solution to this problem -- only incidental). I have found that those same 13 files which successfully transfer in GYM can be played normally as local files, but cannot be played from the device in SonicStage CP (error: "Cannot load the rights information for the selected tracks. The file format may not be supported by SonicStage. (0000010d)"). All the other files, which GYM fails to transfer, can be played from the device in SonicStage CP. GYM cannot play any file at all -- there is activity on the device when I press "Play" but nothing plays, not even after several minutes. The program does not hang when doing this -- pressing "Stop" works. There are no DRMed files on the device. I ran FILEMON (from sysinternals.com), with the log filter set to only include "GYM", in order to try and pinpoint the problem. I have uploaded the relevant log excerpts HERE (with comments), to prevent this post from being bloated with large chunks of code. Since there are no error messages, I'm at a loss as to what could be the problem. Have I overlooked anything that I should have done/installed on my system? Also significant is that the NW-A608 has "Intelligent Features" (Intelligent Shuffle, Artist Link), which means that SonicStage CP writes extra data to the database on the device. Since GYM was made for older NW devices, it's also possible that it cannot read a database with these new features. If there is nothing I can do to solve this, I hope that GYM (or a new project) will be developed for full compatibility with the newer NW devices -- unless this issue can be solved for the current version through a workaround or patch. Thank you for your time. - Fyda