Almost fooled, 4G microSDHC works fine in Q9h I just picked up a SanDisk 4GB microSDHC at Staples for $54. I popped it right in the Q9h (AT&T) and went to memory manager. It said 3.79GB storage, 0 used. I then formatted it on the Q. All still OK (took only 5 seconds). I tried the storage card program and it said "ERROR, no card detected". Not to worry. I just copied some music files to it using file manager and all works well. I never even used my PC at all with the card. I'm loading it up now on my PC with a bunch of MP3's using the included USB reader and SD card adapter. The card from SanDisk says "For microSDHC and SDHC devices only" on the package. But it works real well and music is stable playing from WM player. I hope this helps you all as the doubt had me for awhile. Oh, by the way, my first computer had 4k of ram, no drives and 16 swithes on the front panel to deposit double byte binary words to program it. One like it is in the Smithsonian (really, an Altair). I'm an old hack!