Since there isn't much information about rewritable DVD media on PS2, and information is a bit contradictory (some claiming you can't, some claiming you can) I decided to give it a try and post my results.
So, can you play PS2 games using rewritable DVD media?
Short answer: yes, but you need to patch them with ESR, a modchip alone won't work.
Long answer:
From what I can tell reading online, PS2 added support for DVD RW media starting with SCPH-5000X. However (as it's expected) the...
How to: Playing PS2 games on DVD (+-) RW media
So, can you play PS2 games using rewritable DVD media?
Short answer: yes, but you need to patch them with ESR, a modchip alone won't work.
Long answer:
From what I can tell reading online, PS2 added support for DVD RW media starting with SCPH-5000X. However (as it's expected) the...
How to: Playing PS2 games on DVD (+-) RW media