Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
I bought these MDs based more on price than on brand loyalty or preceived quality (ok, totally based on price).  I haven't had any recording problems with them at all.  The cases they come in hold 6, but are loaded with 5 to begin with.  The case is very convenient in that I can slip it into my backpack and know that I'm not crushing my MDs with all the books in there.  The only complaint I have on the construction of the MDs.  The metal discs rattle inside their plastic shells.  I'm not sure if that signifies anything with MDs, but when my computer discs rattle like these do, I toss them before they try to fall apart in my hard drive.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: B: positive