I bought one multi card reader from ebay but whatever card I tried (micro sd, SD class 10, SD calss 2, SE memory stick) it tells me that the card is corrupted and you should format it. Actually the cards are fine and can read them in my camera, phone or PC. Am I missing something here or it is just plug and play and the reader is not working at all. I has an LED that turns on after I insert a card.
Samsung Galaxy TAB 8.9 3G PT/ P7300 / 16GB
Unofficial [JB]CM10 30_10_2012
GSM Galaxy Nexus
Stock Yakju 4.1.2 + Keyboard & Camera from 4.2
T-Mobile G1 (somehow retired)
Radio-18.104.22.168 , Hboot-1.33.0013d , ClockworkMod 22.214.171.124 , 4 GB Class4 EXT4 SDcard