Re: Accessing CDs or cd9660 broken

On 20/01/2026 12:14, Jörg Sonnenberger wrote:
> On 1/19/26 10:27 PM, Jan-Benedict Glaw wrote:
>> (The drive is jumpered to 512 byte blocks of course.)
>
> This part confuses me. CD-ROM sectors are 2048 Bytes long?
>

Some OSes and boot firmware simply cannot understand sector sizes other 
than 512 bytes and so some vendors added an option to their CD-ROM 
firmware to switch to 512-byte emulation. Pretty much exactly the same 
as some modern HDDs with 4096 byte sectors pretending that they have 512 
byte sectors.

IIRC DEC and SGI both chose this option.

Ngā mihi,
Lloyd