At 09:42 PM 2008-01-07, Richard L. Hess wrote: One more data point for tonight... An 80-minute MAM-A gold archive CD just burned at 16x showed 3.8 Avg/sec and 21 Max/second C1 errors. This is much worse than the silver one burned a few weeks ago in the same drive, but better than the 32x burn by a bit. The Real time and 32x are gold, the 16x is silver. Real Time 16x Ag 16x Au 32x C1 avg/sec 6.5 0.7 3.8 4.7 C1 Max/sec 36.0 18 21 28 There are two possibilities with the gold (Au) disk. (1) The silver is higher reflectance = fewer errors (2) The silver is from an older batch (I think several years) and the coating is thicker than the contemporary see-through-the-gold MAM-A Archival discs. While actually none of these is evil, the differences are surprising on one level and not on others. Cheers, Richard Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX Detailed contact information: http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.