accu disc any good?

Two questions really, 1. Are Accu's really Optodisc? If so, they'er a bargain because I've passed around an Optodisc to 7 or 8 people and no one has had any problems with playback) 2. Why do I always get an ASPI error ( ASPI Command returned: SenseKey 05h;ASC 24th;ASCQ 00h) from ADVDInfo when I ask for "Media ID"?

Not sure on the first question, are they optodiscs. you get the error because thats no the right line item...think it's further down the list; OE....Pre recorded info in Lead In