Please would you mention the brand of these G04s?
It's been known that Ritek G04 discs of very different grades have flooded the market last year. If you went unbranded, Arita branded or Rimedia branded for example, it's very likely that you've bought B and C grade G04s.
My own G04s do fine as I mentioned in the other thead about G05.
This is something that many users simply didn't get about Ritek discs because Ritek had such a good name last year: this manufacturer has started producing tons of discs of all grades, probably with sloppy quality control, to meet the demand. Shops started selling unbranded Ritek-manufactured discs (or under brands like Arita, Rimedia..) just like if it was the "real stuff".
That's why there are good, bad and marginal Ritek-manufactured discs, and depending on the stuff one buys, he/she will be convinced either that Ritek is good, or bad, or marginal.
Here is an extract of a post of mine in another forum:
"Ritek is totally ruining its reputation with all these quality control problems with G05 production, ending in so many different grades available. Same happened last year with G04 discs.
Furthermore, it induces senseless and endless arguing between DVD enthousiasts, because some RitekG05 [COLOR=Red](or G04) users have used the good stuff and are convinced that those who used the bad stuff are delusional (user error, burner incompatibility, whatever) and same thing the other way round, those who used the bad stuff are convinced that those who used the good stuff only try to defend the media they use or are mindless newbies."[/COLOR]
This is something that doesn't happen (at least nowhere near this extent) with other manufacturers, in general either their OEM discs are bad or good or mediocre but there is no such variation in discs (I mean discs with the very same mediacode) as it's the case with Ritek-manufactured discs.
Ritek-branded, Traxdata-branded, Ridata-branded discs are another story. It seems the quality of these has started to decline only very recently.