Yeah, TG00041 is the batch number found around the hub of the disc (in the dye itself) - I’d say it’s unlikely that’s been faked, as it’s one of the best ways to identify a genuine TY disc, as opposed to just checking the MID.
The question of brand/where they were bought is a good one. Quality may vary depending on brand.
Definitely give ImgBurn a go
BTW, welcome to the forum