CD, DVD, Floppy

Floppy disks and floppy disk units represented important part of every computer until recently. Only two decades earlier floppy disk replaced the tape drive from personal computers and represented the only computer memory.

In a very short time floppy disks became backup for hard drives in data transfers until its capacity became completely useless. Floppy disks that have 1,2Mb (5, 25’’) capacity are replaced with floppy discs of 1,44Mb (3, 5’’) capacity that we use today. There have been floppy disks of different capacity on other platforms.

When the CD and CDRW appeared, floppy disks became history. Besides CD, today we also use DVD and DVR. Although DVD is still widely used, its end is predictable. The price of Blue Ray disks are still high, and that's why they are not yet so widely used. Common to all media of this type is that, in order to read them, a motor is needed, spinning them, and the head (or laser) that moves along the diameter.

The media we are reffering to, are portable and problems with them are mostly mechanical in nature. Damaged surface of the media disables the reader to read the data correctly. The computer sets the command to read a corrupted sector again, but if the damage is such that it is impossible to read the data, the defective media is blocking your computer.

The problems that can occur wtih these types of media are deleted or overwritten data, unfinished disk burning sessions, bad sectors on floppy disks etc..

HelpDisc has the most advanced software that can efficiently extract information from these media. Standards of production and capacity, and long-standing presence of these types of media, represent a mitigating circumstance.