Motherboard: Intel 850DBG
Drive: Plextor 40/12/40A, firmware 1.05 (latest)
I'm using Easy-CD Platinum v5.05 (yeah, I know, but it was free). I've tried over 6 brands of media, some of those in different (packaged) speed ratings. Among them, Maxell 24x and 40x, Verbatim 32x, Sony 40x, Phillips 48x, and KHypermedia 40x. All media is 80 minute/700MB (or so says the packaging).
I have Intel Application Accelerator v2.3.x.x.x installed. I've tried setting the drive to No Limit, UDMA-2, and UDMA-1.
Now, to the problem. I burn a cd-r, data only, with anywhere from five to fourty files of varying sizes, never filling the disc completely (leave a little room, just in case). I finalize all burns. The disc burns fine, no errors or apparent speed issues. Now when I try to read the disc, it takes a bit longer for the drive to read the ToC. Annoying, but bearable. But when I try to copy the data from the cd-r back onto my hard drive, it takes a VERY long time for the files to copy (20 files, 600MB, 25+ minutes).
The drive has no problem reading production silver discs.
I ran the drive's self-diagnostic and it completed it with no complaints.
Any advise would be greatly appreciated.