Yep, just to confirm - I have a single-voltage 1GB RS-MMC card and it works perfectly with the 770... looks like MMC Mobile, DV RS and plain RS all work with the 770.

At the end of the day I'd say plain RS wins hands down as DV RS and MMC Mobile both seem to be more expensive and with reduced capacity compared to plain RS.

I have a hama brand single voltage card labelled "RS-MMC" and it has two rows of contacts. I have a Nokia branded dual voltage card - in the box with my 770 - and it only has a single row of contacts.

It sounds like we have seen all four combinations of (single, dual) voltage and (single, dual) rows of contacts.

Thanks for all the info guys! I ordered a 1GB Kingston MMC Mobile card because:
+ I'm hoping it will be faster than RS-MMC
+ I'm hoping to use it for swap space
+ Lifetime warranty
+ Kingston sells them right on their website with free shipping! $82

Check it out:

http://www.ec.kingston.com/ecom/conf...1gb&referid=28

Best regards,

- Ari (...I don't work for Kingston)