It was back during the winter I believe. They basically made it highly impractical and nearly impossible to use sells PDFs.
Here's a brief synopsis: http://lsatblog.blogspot.com/2015/03/lsac-bans-lsat-preptest-pdf-sales.html
My dad has a "Brothers" office printer (sorry about not having a specific model) that I use to print out the hundreds, if not thousands, pages of LSAT material so far.
You could print/obtain a fresh copy and do it that way, that's assuming you don't really remember which ones are incorrect. Even if you do, any type of review is better than no review.
Thank you for leaving the option of the old problem sets. Makes it simpler for those of us who did get the opportunity to download the PDFs before LSAC made everyone take them down.
I've decided to purchase the .pdfs off Cambridge for 46-51, meaning I won't have to wait for a book to arrive, plus I like writing them like this as opposed to the bulky booklets Amazon has.
I have the PDFs... I never bought multiple copies of the books. I bought two different ones used for 5 bucks a piece on amazon. One was clean and good to go and the other was marked up even though it said it was clean so I tossed it :P
You could copy all the pages as PDFs and then cut the questions you want and paste them into a word document... As long as you're not sharing them I don't think you'd be violating any copyrights or anything.