I have a Samsung Series 7 Slate with a 64GB microSD, and the Windows 7 running WMP12. It wont recognize my SD card for the Music Library because it is a removable device. On my last tablet, a guy helped me build a shortcut from C drive to read the SD card. It worked well. But I dont know how he did it. The following link tries to explain it, but I can not find anything titled "Disk Management" or "Computer Management" in my Control Panel or Computer menus. Any ideas? This is the link I found
The way to do this is to go to a known location on your hard drive—C:\ perhaps—and create a folder called Camera Card, or whatever. Then start the Computer Management program (Search the start menu for it) and click on "Disk Management" in the left-hand sidebar. Right click your removable drive and select "Change Drive Letter and Paths". Click Add and select "Mount in the following empty NTFS folder". Choose the folder you made earlier (e.g.,C:\Camera Card). Now if you look in the C:\Camera Card folder you'll see the contents of your SD card. Now, if you right click your new Library you made earlier and addC:\Camera Card to it, it'll work!