What's an LBA?

Hi, what’s the LBA number that CDR Identifier gives you? Does it actually tell you something, or what?

A logical block address is a 28-bit value that maps to a specific cylinder-head-sector address on the disk.

or at least that’s how it is on a Harddisk !!! Don’t know if the same thing is valid on a CD. (apart from the cylinder-head thing)

LBA is what makes a PC use a HDD larger than 528 MB. 28 Bit makes it possible to acces up to 8.4 GB.

Never seen any LBA’s in CDR Identifier…:confused:

Yes there is:

ATIP: 97m 28s 12f
Disc Manufacturer: Gigastorage Corp.
Reflective layer: Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type: CD-Recordable
Recording Speeds: min. unknown - max. unknown
Nominal Capacity: 702.83MB (79m 59s 74f / LBA: 359849)

LBA is the “other” way of describing the contents of a cd.
The usual way are minutes and seconds, but LBA shows the sectors.

In the example G@M3FR3@K described
Nominal Capacity: 702.83MB (79m 59s 74f / LBA: 359849),
it means that there are 359849 empty sectors on the CD.

edit: I forgot to say why LBA can be usefull :slight_smile:
=> e.g. with CDRWIN, you can choose “copy sectors to harddisc”. This can be used if you want to rip a copyprotected audio cd.
You enter sector 0 (start) and sector xxxxxx (the end of the cd) and CDRWIN rips those sectors to .wav. (“copy tracks” won’t work, because of the copy protection’s fake table of contents)

Ah, must look closer next time… :slight_smile:

cool, thanks wannes