dvd+r working better than dvd-r

[johnnybgood]

I'm using ritek dvd-r

The programs used to create the iso for backup is dvd decrypter, and the program used to burn is alcohol 120%

The dvd+r is ritek brand also.

What is weird is that the dvd+r is actually working faster than the dvd-r. My dvd-r backups keep going slow, freezing, etc, while my dvd+r, while sometimes they do mess up and my system makes a clicking noise -- they do it far less, and never go as slow as my dvd-r -- the dvd-r, for some reason, will just pause at certain points. I suppose that either A. I need to clean my system, or B. I need a new laser?

I'm just kind of confused as to what to do, like if I get a new laser, if my backups that are dvd-r will start working better, or if I clean my system, my dvd-r will start working better.

I was thinking of getting this guide: http://www.richspsxparts.com/ucgcd.html

They have videos on laser replacement, if it comes to that -- which I'm starting to think it will...