Was the disc created at a factory (original disc) or is it a disc that you or someone else has burned at home?
The discs were all initially formatted on the LG and video on the discs were also recorded on the LG.
Now the LG just recognizes all discs as DVD and not recordable
What brand and type of discs are you using?Have you tried using any other brand or type of discs?
Yes I tried other discs. Even in another DVD recorder. This discs are fine.
It is the LG machine that is giving this error.
Ok, then the laser is not working correctly.
Sometimes it can be due to dust, however I see that you have already used a cleaning disk.
You could try blowing some compressed air into the drive to help dislodge any dust that may be on the laser.
If that doesn't help, then the laser will need replacing, and it may be more economical to invest in a new recorder instead.