If you're serious about security, start with multiple overwrites
, using software that conforms to Department of Defense specifications.
Low level formatting, which refers to overwriting below the level of the operating system, is not as effective as overwriting with utilities programs because it only overwrites
once and with a single pattern; the more overwrites
that can be done the less likely it is that the data underneath can be recovered.
The LF-7010 rewritable optical disk drive differs from magneto-optical disk drives in that it uses a recently improved phase-change technology to overwrite
information in one pass directly onto a rewritable optical disk.
The LF-7010 rewritable optical disc drive differs from magneto-optical disc drives in that it uses a newly developed phase-change technology to overwrite
information in one pass directly onto an optical disc," said Joe Videtti, national marketing manager, Panasonic Office Automation Group's Computer Systems Division.
Many third-party programs (for both Mac and PO users) can overwrite
files and perform other functions to optimize the data on your hard disk.