I have the same problem, this is what chipgenius says about my player
Device Name: ++[J:][K:]+USB Mass Storage Device(GENERIC USB DISK DEVICE USB Device)(GENERIC U...
PnP Device ID: VID = 10D6 PID = 1101
Serial Number: 5&&2DB4FB8F&&0&&1
Revision: 0100/0100
Device Type: Standard USB device - USB2.0 High-Speed
Chip Vendor: Actions
Chip Part-Number: ATJ209X/ACU75XX
Product Vendor: (N/A)
Product Model: (N/A)
Tools on Web: (N/A)
so I started a search for the chip you said it has and found this link:
Fixing USB/Flash/Pen Key with MPTools - MXT6208A Chip-Bloggy Bloggy My Blog
and this one looks promising too
http://fixfakeflash.wordpress.com/
good luck.