I am deciding to buy a optiarc to replace my latptop drive so I can burn DL media when my desktop is occupied or when I am not at home. I found two IDE optiarc units but need more clarification as to which I should get and one cost more then the other. I will be using the Slysoft with the drives FYI so I like to know if either of those drives works correctly with Slysoft software ie Anydvd HD, CloneCD, CloneDVD, CloneDVDmobile. Here are the products from amazon.com since New egg doesn't have anymore IDE optiarc units for sale.
The two computers that I have switched the drives with are Dell E1505, Latitude D830. I taken out both drives and swapped them and it works so I know the E1505 can be swapped to the D830. Also the price is slightly higher for the 7590 (59.00 USD) compared to the 7580 (38.99 USD). I do know that newer model has larger number but does it mean the older 7580 won't do what I want to do in backing up my DVD movies?