PS2 no longer reads dvd-Rs

[Xeonexus]

My v5 ps2 wont read the dvd-r's that it used to read few months before.Cd-r games still load but it wont read dvd-rs. At 1st i was thinking the laser needed to be adjusted or something but now i believe I forgot how to swap the disc. I have a no-solder with GSv2. I read over the swap trick a few times but still nothing.I dont play ps2 that much so Im not going to bother with another mod chip.Thanks for any help/info.