Stargate Atlantis Season 5 Disc 2 won't open

[sorka]

Spins for about 5 minutes and then says "no disc". Every disc in the series fine up to this point including disc one of season 5. Disc 2 loads instantly and plays fine in my old sony bd player. Any idea?

[Woodstock]

Having read in the Stargate Atlantis disks previously (at least 5 years ago), MakeMKV can read them if the drive will read them... But it would seem your copy has an unreadable disk.

Have you tried cleaning it? These disks are old enough that they could have accumulated chemicals from the packaging (often a problem with disks older than 6 months).