Not to be a smart ass, but the load time is completely dependent on your ability to work with the slot loading system. I believe the machine allows an approximately 10 second window per disc when it's in "Load All" mode. If nothing is loaded into the player within that 10 seconds, it assumes you are finished, and will then prompt for a scan of the new discs (if you are in disc manager within MCE). You can always say no, then load more.
I know first hand it'll wreck a disc (or maybe more) if you bung up the loading process. It cracked a Police CD I had loaded in there - cracked a 1/4 of it right off. The system I came up with which I'm pretty comfortable with now is to prepare the discs you're looking to load in advance.
- Gather them in your left hand, all labels up, same as if they were on a spindle.
- Set the Changer in motion for the loading process.
- When the slot opens for the first disc, slide it in about 3/4's of the way until you feel it resting on the internal mechanism; release it and wait for the mechanism to let it slide the rest of the way into the tray. The slot will then close.
- Wait and listen for the tray to rotate to the next open slot, and reopen for another disc.
- Rinse, lather & repeat
An earlier poster suggested loading no more than ~5 or so at a time. Until you are comfortable loading it, this isn't a bad way to go. Once you ARE comfortable loading it though, the above system is limited only by the number of discs you can hold in your hand at one time.
Once completely loaded, wait for MCE/WMP to ID the discs, then initiate the ripping process, and go to sleep. I found that WMA Lossless took ~6-8 minutes per CD on a C2D 6600 onto a RAID 5 array. You do the math multiplied by 200... YMMV.
One note: I found the Changer refused to rip a number of discs that eventually did rip, but they required reloading & re-identification in some instances (about 10% initial rejection rate per batch). Frustrating, but still better than ripping them all by hand one disc at a time.
Even with the 1 disc it ate and all the lousy identification of the DVDs due to AMG's ID database, I'm leaning towards keeping it. Maybe Amazon will credit me for the "Ghost in the Machine" disc... (Irony or Serendipity that it shattered that one?)