do anyone install 2 blu-ray drives in a computer
I have 1 GGC-H20L and 1 GGW-H20L in the computer
every time I rip 2 different Blu-ray movies at the same time
they both rip at the same speed no matter fast or slow
do anyone know why? thanks
Usually when you encounter a problem like this in an I/O system it represents a bottleneck consisting of single threaded code. That piece of code is single threaded and effectively serializes the operations. One chunk from the first drive, one chunk from the second, one from the first, one from the second...
For two comparable size discs, this will lead to them always finishing at about the same time.
If the performance of that code is the limiting factor in the rip, the rip will take twice as long to rip from two drives. If not, it may take the same amount of time as a single drive.
If you are sufficiently curious to experiment, you can probably locate the bottleneck by disabling or enabling software or changing it to others that perform the same function.
How are you ripping? Are you using a drag copy from Windows Explorer, CloneCD, ImageBurn. As far a I know you can only get one instance of AnyDVD ripper at a time.
Rip one disc with one option, the other with one of the others. Did the timing change?
Try disabling AnyDVD. Does it change?
Try sending the result to a different physical drive (not partition, different spindle).
SATA drives (which these are, right?) generally do not suffer from the 'DMA' problems that PATA suffers from (really, PATA suffers from Microsoft's error handling strategy more than anything else).