Whoever paided 400 for a drive is crazy.
For dual format, TDK and Verbatim are around 200-250. Sony is more expensive, around 250-300.
Single format are around 100-150.
They have been on sale off and on. Check your sunday paper.
I am not making this up. My Roommate has a Cendyne, which is a rebadged Panasonic for 100 AR. He got the dual TDK AR and tax for 210 which he is selling on Ebay.
The Verbatim was on sale last week I think for 230.
Hope this helps.
TDK was from DELL
Cendyne was from Officemax or Office depot or Staples not sure.
The later has online coupons plus rebate thus the 100 dollars and 200 dollar range.