CD Quality Check (CD Speed): How many errors is still OK?

[jrichrds]

Using CD Speed to do a CD Quality Check on a just-burned CD-R, I get two yellow vertical lines in the graph and 141 errors reported. I do a quality check on the same disc using my DVD-ROM drive instead, and get one vertical line and 60 errors.

Is data integrity only a problem if you get 1000 of errors, or is anything beyond single digits bad?