Moser baer dvds
Defect in the dvds itself

My complaint is regarding my two moserbaer dvds:

1. Moser Baer DVD RW Pro 4.7GB

2. Moser Baer 8.5GB Double Layer DL

These both dvds has a defect of taking the files but cannot be removed, moved, copied, deleted nor renamed. The cover of the dvds shows it is writable but when entered in the computer it shows that the file which i have entered in the 4.7gb disc of around 90kb as full meaning the disc is full with just 90kb on 4.7gb disc. Same as for the 8.5gb disc

I just want justice regarding these dvds.