no
A Bluray disc stores five times more data than a DVD. Therefore, a DVD will not have the capacity to store the contents of a Bluray disc.
No
I don't think you'll find a powerful enough magnet; the DVD-R is an optical recording medium and is unaffected by magnetism.
Bluray
To erase a floppy disk with magnets, you would need a strong magnet, such as a neodymium magnet. By placing the magnet close to the disk's magnetic media, the magnetic fields can disrupt the data stored on the disk. However, this method is not highly reliable, as the effectiveness depends on the strength of the magnet and the type of disk. Additionally, using magnets can potentially damage the disk, making it unusable.
yes, but you wont get high definition quality
ps3 games are bluray disc
A VCR (Video Cassette Recorder) uses electromagnets in the record, playback, and erase heads. An erase head can also have a permanent magnet in it.
No
A blu ray disc is a storage medium, not an input/output device.
No. All current 3D disc content is HD and so use Bluray discs. You have to have a 3D Bluray player.
It means that your disc has a bad error so it cannot read and write files. if your error is on the dvd-rw, you can erase it. if your error is on the dvd-r then you cannot erase it and you will have to bin the disc.