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All the Perl that's Practical to Extract and Report

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  • I think LBA is the acronym for Logical Block Addressing [webopedia.com], a term anybody who has ever messed with hard disk settings in the BIOS, will already have encountered. As opposed to the old style cylinder/head/sector addressing, where a sector is accessed via 3 integer identifying numbers, all with a limited range; in LBA, each sector only has one unique integer ID, with no gaps in the range.
    • I encountered LBA for the first time, I think, when I was using fdisk. But I never bothered to figure out what it would mean.

      LBA on CDROMs is exactly what you described: addressing happens only by frames and not through minutes, seconds and additionally frames. Those two can easily be transformed into each other (one second consists of 75 frames according to linux/cdrom.h) and so I am now using LBA internally because dealing with just one value is more convenient than with three of them.