USB 2.0 devices slow 1.5 MB/s transfer (cruzer and others) - major problem in windows 7 world !
My Sandisk cruzer micro 32 GB, 2.0 USB memory stick takes forever to format and corrupts files copied to it.
1 mb copy speed !
It uses Windows drivers so 'im up to date' great help.
Format it with 64k cluster size. That sped mine up a bit.