i upgraded my pioneer 105 firmware so it will write at 2x on some disks but now it dosnt write a 4x on 4x disks. any help plz?
where did you get the firmware from. Get it from http://forum.rpc1.org if you didn't already. Thats where i got my firmware for the 105 and it works perfectly.
The best firmware for the 105 is v1.30 - you may need to downgrade to this. Try not to change it when it works as it can cause unecessary problems.