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

Input:
My problem with these disks is that they will record, and it will show that I have all the tracks I put on the disk, but it will only play a certain portion of what I recorded.  My wife uses these disks for her cycle class at the gym and burned one this morning.  She went to play it in her car on the the way and it only played about 30 seconds before skipping and going silent.  This has been an ongoing problem with these disks and it's getting very frustrating.  I just tried an old Sony disk I had on the shelf and am having no problems.

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