Good Media?

hey guys i got a little question. has anybody had an experience with generic cdrs? i have three options
1- generic 80 min 700mb silver/silver 100 pack for $18 us dolllars

2- generic 80 min 700 mb silver/light blue 100 pack for $22

3- RITEK 80 min 700 mb silver/silver 100 pack for $24

i back up alot of games on my dreamcast, and i dont know if these cds will work on the dreamcast. has anybody had any experience with an of these cds?
any help would be greatly appreciated.

ummmm ok then. any help?