Originally Posted by Grober
4 Gb cards (for the M8) don't exist.
I prefer Lexar Pro 133x cards; haven't had a problem yet.
Not on Leica's "list". However if a card isn't on their list it doesn't necessarily mean it won't work, it could be they haven't tested it.
I've been using 4GB Transcend TS4GSD150 cards in the M8 without any problems. About 382 images per card. It's an 150x SD card not SDHC. There seems to be some confusion with vendors over this. There are adverts on the web naming the SD version but showing a picture of the SDHC card and also the reverse, as well as swapped descriptions. Be careful!