Actually if you have a 10000 rpm sata drive and a 7200 rpm ide drive, I would use the 10000 rpm sata for the OS, because it is in fact faster both for data transfer because of sata and drive access because of its rpm. If both drives are sata and 1 is 10000 rpm and the other 7200, I would still use the 10000 for the OS, as after 7200 there's really not much improvements for audio. O and make sure he formats the audio drive using 64kb blocks, I found this to give a performance boost, though it will vary from system to system. But usually if you use mainly large files and it's a large (160+) drive, then this format style might help. Otherwise, keep it as the 4kb default. HTH, D!J!X! _____ From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Greg Brayton Sent: Wednesday, January 14, 2009 9:01 AM To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Question about drive placement I know I'm suppose to use the SATA drive, , the fastest running drive to store the audio projects. But I don't know why. I don't know enough to tell the fellow who is building my computer. and the guy who is going to build the computer, is thinking that the 10000 RPM SATA drive should be used for the opperating system. Thinking that will make the computer faster I guess. Could someone explain it in a manner that he can understand why the audio drive, not the C drive needs to be the SATA drive? so we can build it that way with no reservations? Thanks for your input. http://www.gbrayton.com http://www.myspace.com/gbrayton http://www.sonicbids.com/GregBrayton