OK, won’t keep keeping u on the topic, I jus wanna make sure I get it right.
It’s about reflectivity? I can feel that… that’s why my cheap standalone doesn’t play +RW (I think).
But on the same reflectivity issue, I don’t know what the units of reflectivity are, but shouldn’t reflectivity of discs be in a certain range to be in ‘spec’? If the reflectivity of a pressed disc has a particular value, then if a burnt disc, or any disc for that matter has reflectivity less than that, then its not quite within spec as its not the value a ‘standard’ player was designed to read?
In the above mentioned case, it seems that the reflectivity problem is only for particular sectors, since it plays a lot of it and skips only at certain points. For the reflectivity to be lower there, would it mean that either that spot wasn’t burned properly or the disc had a manufacturing fault there? Its unlikely that the laser is incapable of reading a particular coordinate on a disc, as I think if that was the case it would do that consistently on all discs at the same point.
So if it is the reflectivity, is there any test which can be run to highlight this characteristic? PI/PO tests aren’t showing it.
Agreed, there are many variable factors, but isn’t it fair to say that players are designed to play discs that have particular features, and if one burner has a higher tendency to produce a playable disc on a particular player than another, and all kprobes are ok, that there is something else affecting it?
eg, I think pioneers (A03 and all) used to produce discs which work on picky players that the lite ons would give trouble with, but kprobes being ‘in spec’ on both… and this is with the same media.
So, with this, how can we really just look at the kprobes above, assume the discs are super and lay blame on other objects in the chain? I guess it could even be the burn intensity and the depth of pits or however the dvds work. can’t it be said that the burner may read it very well as it is equipped with a ‘really really good’ laser which can pick up things that ordinary ‘close-to-spec’ designed players won’t?