Pirate Problem

I bought new disks, Verbatims from singapore (they're supposed to be the best) and every disk I've tried burned to completion. But when I try to verify, about half disks failed verification. About 3/4 of the disks that failed failed at 50%, others failed at around the 90% mark. But they all still work when I put them into my Xbox (games play fine as far as I can tell). What should I do now? Get a new burner?

Insert an old disc and switch to read mode and look in text of the right side of the progrram under disc info. Here is the info from an old disk that was burned successfully. Are you looking for MBIPG101-R10-65 ? Then yes, it's different. I guess I got lucky the first time and got a good batch but this second batch is crap? Something else I just noticed, the ones that failed to burn successfully come up as empty with 25.3 gb free space when put inside my computer. I've been buying these off Amazon. Is there anyway I can tell if they will be RITEK or MBIPG101 before purchasing? I just realized the first batch was from an amazon seller and the second batch was from Amazon.

I already read that thread before posting, it didn't help.

I'm using Memorex DVD+r DL disks. I've done this dozens of times already using Memorex and this is the first time it has happened to me. After burning for a while I get this message. I've wasted about 10 disks doing this and it seems to always happen at either 55% or 62% (not sure if this means anything). I've tried burning at different speeds and turning off programs to save memory and it still doesn't work. Let me know what you think. Once again, I've done this at least 40 times using Memorex disks without any problems over the past few months. I took a break for about a month and now I get this problem. Logs