I have two iPod classic 7gs. I first tried to use two different 240GB PATA ZIF SSDs with no luck at all (Renice K3VLAR and SuperTalent). I had other uses for these drives, so the rather astounding sum I spent on them still been put to good use. The Toshiba MK2431GAH is the largest 1.8" PATA ZIF "tradtional" drive that I have been able to find. It works great, and I have modded both of my iPod Classic 7g units with no issues. These are both 2-platter drives. The iPod does NOT care how many platters there are - but they ARE thicker so you DO need the thick back for the iPod classic. Tips: 1) You need to be VERY careful when working around the LCD panel while taking the case apart. 'nuff said. 2) You need to try to carefully preserve the rubber padding and foam that comes on the factory drive so you can transfer it. Otherwise, the new drive will rattle around inside the unit.