odd problem involving boot discs and ###ne

[GuNd j]

hey all,
I have a chipped ###ne which cannot direct boot imports (the older chip) and i'm trying to burn a boot disc i can use.

I borrowed a Xploder CD9000 from a friend and that loads imports fine. But when i copied it (Using Nero 5) it won't boot directly. If i swap it with another burnt pal game at the black psx screen it will boot from there, but this defeats the purpose of a boot disc.

I then reburned the disc at 1x with CDRWin, same this happens, i then burnt a gameshark cd (i patched it as Euro licence first) with CDRWin, then burnt Import Player with CDRWin, all at 1x.

When Import Player failed to boot direct but succeeded with a swap, i figured something must be wrong with my burning or something, because Import Player is intended for ###ne's.

Another interesting fact is that all these discs boot directly on my old SCPH-1002 PSX, but i don't use it for games as the laser is almost completely buggered.

It can't be that my Modchip isn't working because all my other 70 PSX backups work. (PAL ones boot direct, NTSC ones need swap unless patched). And because they boot on my psx, it doesn't seem like its a problem with my burning. But i could be wrong.

Any help? Im really desperate and annoyed.