Date: Mon, 30 Jun 2003 22:29:30 +0100 From: "Nick Rees" <[EMAIL PROTECTED]> Subject: Re: [LIB] USB Card
Hi Matt, > > Do you have a CF memory card of any kind for a camera, MP3 player or some > other device? With that and a USB2 CF card reader, you could time the > transfer of data and get some idea of how fast the USB2 connection is. I don't have any CF devices, the best I could manage is a 128MB Memory Stick which I just happen to have a drive built into my Sony DVD/CDRW. But of course transfer rates of Memory Sticks are fairly pathetic for what we need . . . but it did 119MB of data in 6.5 minutes. Definately not good enough. If I can persuade my brother to let me borrow his new Zen on Thursday, I could run a test against that with about 5GB of data. That should give us all a bit of a better idea of how things go. > > As I recall,I can fill up my 340MB microdrive with MP3s in about 7 minutes > with my USB 1.1. That works out to 4.8MB/min which is pretty slow > considering the maximum optimaized transfer depending on system hardware for > USB1.1 is rated at 1.5MB/sec. That's MB as in Bytes, not Mb as bits. I think my MS drive made about 18MB/min . . . > > But I'd be interested in how long a similar test of data would take from the > Lib to a CF card via a USB2.0 connection. I'll get my hands on my brother's Zen and see what I can get it to do . . . results won't be till sunday though! Nick. ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
