New Member Here With Questions About Career DVD Sets

Hey Guys, Fairly new fan to boxing here and I'm looking to start buying some career DVD sets for certain fighters I like or have heard a lot about. After doing some thinking, I'm looking to start my collection with career sets for: - Mike Tyson - Vitali Klitschko - GGG - Roberto Duran (as I heard he was super exciting to watch) - Arturo Gatti (another great I've hard lots of praise for, may he R.I.P.) The trouble is, I live in Canada and am not sure where the best place online to buy these sets (in terms of the best audio and visual quality) is. I was thinking of going with BoxingWholesale.com unless there are other sites that offer these 4 sets either with more fights in them or with better quality. IIRC for example, I think the Duran set that BoxingJunkies sells has more fights included on it then the one that BoxingWholesale sells but I've heard iffy things about BoxingJunkies so I dunno what to do or where to go?? Have any of you dealt with BoxingWholesale for any of these career sets or can you guys recommend other and better places???