NOTE - deleted data is not truly deleted until a complete erase process has occured - the data is just flagged as deleted, so the computer ignores it and thus makes it look deleted. This process can be reversed by re-aligning the entire surface of the disk so that all the crystall all face the same way, effectively giving you a clean slate to use again. This process of heting the compound cannot be reversed, and thus data cannot be removed.Ī CD-RW however uses a crystalline compound which, when heated forms crystals which are aligned in one specific direction that refracts the laser light slightly, thus giving rise to the 0's & 1's. Click 'Erase Now' to start erasing CD or DVD. Choose the burning drive, and change the erasing settings if needed.
Run AnyBurn, then click 'Erase rewritable disc'. To erase the disc, please follow the steps, 1. This is due to the fact that the disk contains a chemical compound that when heated creates areas which are more opaque than that of those not heated. However, the full erase will clean data in all sectors of the disc, and will take more time to finish the operation. Data can only be written to CD-R, not removed. This is because the data is physically pressed into the surface of the CD at the manufacturing plant to create a series of pits and lands which the laser interprets as the 0's & 1's of the binary data.Īdditionally, you also cannot delete data from a CD-R disk.
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