I am using an MF Digital Ripstation with dbpoweramp and use the batch ripping function. I am able to rip up to 60 CD's per hour using this system which utilizes four CD-ROM drives which are indexed and provides bit perfect accurate rips. I use GD3 as my metadata provider which provides me with accurate metadata and cover art for all of my CD's. I have used this for a few years now and have ripped about 7K CD's.
I completely rebuilt the machine with new drives new motherboard, memory, cpu and current version of Windows 64 bit. This allows much faster throughput than the factory setup which is 32 bit and lets me rip virtually 2X as many discs per hour. I frequently purchase used CD's in large quantities to get a very reasonable price for them and have ripped as many as 1500 CD's in about 3 days doing nothing more than watching the machine load the CD's and check the cover art. The only thing that takes some time is removing and reinserting the CD's in the jewel cases and cleaning each CD briefly with a microfiber cloth.
I completely rebuilt the machine with new drives new motherboard, memory, cpu and current version of Windows 64 bit. This allows much faster throughput than the factory setup which is 32 bit and lets me rip virtually 2X as many discs per hour. I frequently purchase used CD's in large quantities to get a very reasonable price for them and have ripped as many as 1500 CD's in about 3 days doing nothing more than watching the machine load the CD's and check the cover art. The only thing that takes some time is removing and reinserting the CD's in the jewel cases and cleaning each CD briefly with a microfiber cloth.