I'm wondering if all these CD test tools (i.e. Kprobe, Nero, Opti Drive Control) can tell me if a CD-R can be read on other CD players. I bought some CD-Rs from Verbatim months ago, and even though they were flawless on my PC's optical drive, it could not be read on many other CD players. What would I look for in a test? I'm using Opti Drive Control.