Freecom Technologies II User Manual

Page 20

FREECOM Portable II Series

Defragmenting

A hard disk can be defragmented using the DOS command 'defrag' or a similar

tool from other operating systems. Due to the fact that files are constantly

deleted and new ones written to the hard disk, files are no longer grouped

together in physically contiguous blocks but instead are scattered, i.e.

fragmented, over the entire hard disk. Defragmentation rewrites the files so

that they are put back together again. This does not affect the directory

structure or the data contents. The advantage of defragmentation is that it

allows files to be accessed quicker by simplifying the searching process. We

strongly recommend defragmenting your hard disk before writing a CD.

Disc-at-Once

Not all drives support the procedure of writing a CD in a single process. As soon

as the disc/CD is complete, it can no longer be written to (single session CD).

EPP

EPP stands for Enhanced Parallel Port and refers to an extended standard of

the parallel interface which allows higher data transfer rates and makes it

possible to connect several devices.

ECP

stands for Extended Capability Port and is a more powerful version of the EPP.

Finalizing/ End disc / Close disc

Completely finishing a CD. Necessary (according to Red Book regulations) for

audio CDs which cannot be read by normal reading devices (CD players) if they

have not been finalized. Also, the definitive end of a data CD. It is not possible

to write anything else on a finalized CD.

Finalization consists of a lead-in and a lead-out (as with fixing) with a final

table of contents. Because only one lead-in and one lead-out are permitted on

an audio CD, any fixing here will automatically finish the CD.

Fixing

Writing a lead-in and lead-out area for a session. This concludes the session. All

data from the session and from any previous sessions can be read by normal CD-

ROMs. This process requires an enormous amount of space, using up approximately

15 MB. This space is definitively lost for other recordings. This means that less

data can be written on multisession CDs than on single session CDs.