Sat Nav DVD read/drive problems

[peter530i]

Hi all,
I have been using sat nav everyday since I have the car - almost a year now. For past couple of months the availability of the DVD drive to read the disc is getting worse and worse.... sometimes it does not read at all. I get message: DVD error.......

I've tried different brands of DVD discs, it is fine for a day and than it progressively gets worse and worse... it is almost like the disc is being worn or something.....day by day... basicaly any new discs is being read max 1 week and than the drive won't read it at all....so I have to make new copy....

I must say I'm using DVD copy.... as my car is second had and I never had the original disc..... but as I said it worked fine for many months without a glitch...... any ideas?? Anyone tried to use the DVD cleaning discs maybe??