On Tue, Nov 17, 2009 at 6:05 PM, Peter Robinson <[email protected]> wrote: > On Tue, Nov 17, 2009 at 6:02 PM, Daniel Drake <[email protected]> wrote: >> On Tue, 2009-11-17 at 18:56 +0100, Sean DALY wrote: >>> as a former audio engineer, I was surprised recently to see a unit >>> like the Samson R16 for sale: >>> >>> http://www.samsontech.com/products/productpage.cfm?prodID=2009 >>> >>> which uses an SD Card as its main memory. 8 track linear PCM audio >>> record, 16 track playback. >>> >>> Of course, it's a case of several large files not lots of little >>> ones... but it struck me that there must be some kind of SD r/w >>> optimization in a unit like that. >> >> Another possibility is that SD cards might generally work a lot better >> than miniSD ones. At least I have a Sandisk SD card here that >> considerably outperforms the Sandisk miniSD card in my XO-1.5. > > Yes, that's quite possible as well. There's all sorts of different > speeds for the cards. I've never really seen a fast mini or micro SD > card.
And I've also never seen an SD one. Even USB drives share the same problem and some SSDs. See: http://www.anandtech.com/storage/showdoc.aspx?i=3531&p=17 If you manage to find SD cards with a proper FTL with some cache, I doubt it will be cheap. Perhaps some caching done in RAM to coalesce writes where possible? A guy has implemented that for windows but I can't seem to find the link. Best regards > > Peter > _______________________________________________ > Devel mailing list > [email protected] > http://lists.laptop.org/listinfo/devel > _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
