Hi people i fixed the problem. It wasn't the discs or the laser. The problem i was having (as mentioned in my earlier post!) was that i had a corrupted cIOS36_rev10-Installer.zip
I fixed my problem by
1. downloading cIOS36_rev10-Installer.zip again
2. renamed the old corrupted folder cIOS36_rev10-Installer to cIOS36_rev10-InstallerOLD in the apps folder on the sd card
2. read the README and renamed the cIOS36_rev10-Installer.dol file to boot.dol
3. created a folder on sd card in apps folder called cIOS36_rev10-Installer and placed the newly named boot.dol to this folder.
Then followed the guides instructions which were to run it through homebrewchannel. (clicked onto cIOS36_rev10-Installer through homebrew)
I chose the online method as my wi is connected to my wireless router.
All i had to do was run 'Network Installation' and it did it for me!!!! (the guide also had a offline method where you could use a wad file (cIOS36_rev10-Installer) instead.
I HAD PRELOADER AND BOOTMII and a full NAND BACKUP BEFORE DOING ALL OF THIS!
Now all the games are working except Ghostbusters (but i believe i need to get a more recent version of my cIOS to fix this as its a common issue)
Now im off to install CIOSCORP wads in order to be able to play games through the 'channel loader'.
Anyone know how to get these CIOSCORP wads????
Hope this helps, but i presume you may be using newer cios than me as i cant play ghostbusters or super punchout unless i upgrade!!
Wii Time!!!!