More like a simple question with a large answer. Oh well, I'm curious what resolutions the PSone supports too. Found out
here and at
gamefaqs 
.
Code:
* NTSC Display Resolution
+-------+--------------------+-------------------+
| Mode | Resolution (H x V) | Scan |
+-------+--------------------+-------------------+
| 0 | 256 x 240 | |
| 1 | 320 x 240 | Non-Interlaced |
| 2 | 512 x 240 | |
| 3 | 640 x 240 | |
+-------+--------------------+-------------------+
| 4 | 256 x 480 | |
| 5 | 320 x 480 | Interlaced |
| 6 | 512 x 480 | |
| 7 | 640 x 480 | |
+-------+--------------------+-------------------+
Jam it back in, in the dark.