Amazing DVDR Drive

I ordered an ancient ATV drama VCD site (trust me, you will laugh at me when you realized what VCD set I ordered), and found that 11 discs out of the 25 VCD set couldn't be read by almost all of the CDROM/DVDROM drive that I could get my hands on. The only one that drive that worked was a DVD Drive on my previous workplace. The model was NEC DVD+RW ND-2100AD. I was shocked because NEC was not particularly great at reading strange discs, and in fact I used quite some lousy NEC DVD Drive before, but this one read stuffs that others couldn't, and that was ... quite amazing.