In this situation there is no official standard test drive that can be used for C1/C2 testing (certainly not one that CDRLabs can afford). Lacking a readily available official standard, the next best thing is a de facto standard. Among the limited choices for test drives that can do C1/C2 testing, LiteOn drives are far and away closer to being a de facto standard, due to their overwhelming sales advantage.
dodecahedron wrote:the testing drive is fixed. so of course it won't "fit" all drives, and unless you're lucky enough to own the same drive used for testing, the applicability isn't 100%.
My point being that there are a lot
more people "lucky" enough to own a LiteOn than a Plextor Premium, and that situation is unlikely to change. So why not improve the odds, as much as possible, that media test results will be directly applicable to the average CDRLabs reader?
dodecahedron wrote: more important considerations are ease of testing, clarity of the output results etc.
Comparing the outputs of the testing programs, KProbe seems to win hands down in these areas. Look at all the extra information automatically encoded into the KProbe output:
KProbe allows the user to choose graph colors, select linear or logarithmic scales, combine or separate C1/C2 graphs, scale charts automatically or manually, label the graphs, save directly to png, bmp or jpg output files, etc., etc. I don't know if Q-Check allows any of that, but based on the screen shots Ian posted, it appears to be missing at least some of these features.
Finally, don't forget that the author of KProbe, Karr Wang, has shown a willingness to work with average users to improve KProbe. I don't know if Ian has tried contacting Karr, but I imagine there is a reasonable chance that Karr would be even more willing to work with Ian directly since Ian runs CDRLabs and has the status of being an authority in the field of CD-RW drive testing and reviewing.
I don't really care what Ian chooses to use for his testing, since I will always do my own testing. But I do wonder what is motivating him to consider using Q-Check. Ian, is it really just the presentation of Q-Check that you prefer?