I bought genuine CV joints for my 2.5Tdi, 93,000 miles, the boots split over the winter at 123,000 miles, they got crap in them and were knackered in no time. Not impressed with the genuine boots failing so soon, decided not to spend a fortune on Audi parts again, bought J&R Ebay seller j_r2006 £16.25 inc postage, two year guarantee. Both have been replaced, metal clips included, as are CV, boot, 'c' clip, bolt & seals. All in all a decent looking kit, fitted perfectly and no problems so far.
I accidentally ordered a 1.9 Tdi B5 CV joint when I realised I was going to need two instead of the one I had originally ordered for my 2.5 Tdi. So if anyone is looking for a cheap CV joint, feel free to email me. I'm in Perth. I have the original invoice for guarantee too.