I wouldn't bother with those ebay parts. There are a ton of vendors on this site to buy cheaply from.
GetBMWparts only sells OE and usually has good prices.
BTW The 8 sets of brake pads I've been though on my 330xi have all been OE and stamped Jurid. I've always been happy with them.
~ '02 330xi
~ '89 RX7 TII