I’m new to this so please excuse my ignorance.
I’ve recently read about how to test for PIE/PIF, and I realize I was actually doing that since some time with CD-DVD Speed, using a Sony CRX-320E (if I correctly remember) combo drive. But now, reading the documentation, I realize there is a clear diferrence between my results and the theory. For ex, for Verbatim Azo media I get average PIE=10,30 and PIF=1.50 (with Nero CD-DVD Speed). I also have an ASUS DRW 1608P (f ver 1.50) DVD-writer, but when I use it for testing with CDSpeed I get strange results and with DVDInfoPro, I get an error message telling me the drive doesn’t support this function.
By the way, the combo drive is not in a perfect state, to be more precise it only read DVD media, in can no longer read/write CDs.
Question 1: it is possible that the errors reported are so big because of the drive used and not the media? Or because the drive is a combo?
Question 2: even so, can I rely on this drive to (only) be able to see the diferrence in quality between 2 DVDs?
Thanks in advance.