Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My Thoughts After Four Years

I bought this unit at least four years ago (when it had a black case). I'm happy with it -- it never fails to play a selected DVD or CD, and the picture/sound quality is very good. Thr only drawback is Sony's "filing" system. It stinks. And it has lost data several times for no apparent reason, so I dont even use the filing feature anymore: Instead I developed a system using an MS Excel spreadsheet format to create two playlists, which I maintain on my PC, with printed copies near the Sony: The first Excel document is an alphabetized list by title, with the appropriate slot number in column #. The second Excel document is a numerical list by slot number, with the Title in Column 2, and comments (if any) in Column 3...Not a great way to maintain everything, but after I got it up and running, its been pretty easy to maintain it...Now that I'm close to using all 400 slots, I'm thinking of daisy-chaining another one.