From what I've seen if Discotek though, they do put as much quality into their products as they can, so I'm sure it will be fine. Their Slayers set is fantastic.
As for the disc swapping aspect, that usually isn't an issue for me. Usually I watch one disc a sitting, so I'm never switching discs 100 times a day. On the other hand, I also don't keep discs in a machine when I finish. I will never risk having a disc permenantly stuck in a machine again, especially in a machine like the PS3. Thus, I will be removing the disc after every viewing anyway, so it will be like I'm switching discs regardless.