ABug 04: BBC Micro floppy disc preservation, Greaseweazel device and HFE format (Daniel Jameson)

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  • เผยแพร่เมื่อ 24 พ.ย. 2024

ความคิดเห็น • 2

  • @MattGodbolt
    @MattGodbolt 6 หลายเดือนก่อน

    Thanks for this! It was well put together; don't give yourself a hard time Daniel :-)

  • @broganmcintyre8594
    @broganmcintyre8594 ปีที่แล้ว

    I'm currently in the process of recovering data from a number of 3.5" floppy disks when I came across this video. I found it very interesting, in particular the visual of the tracks. Here is a summary of the main points covered:
    - The speaker mentions gaps between tracks on a 40-track floppy disk, as well as red and orange sectors that may indicate read errors.
    - To tidy up the data and identify errors, they suggest removing odd tracks and investigating specific tracks with errors.
    - If errors occur, it is recommended to use additional software like Disk Utilities to attempt decoding the disk again.
    - The goal is to recover the data from the disk and preserve it in formats like IMD or HFE files.
    - Mold and dirt on disks can cause issues, so cleaning the disks before reading them is essential.
    - The speaker shares their experience recovering data from a moldy disk and discusses the damaged sectors and potential data loss.
    - They mention the possibility of fixing dodgy pulses or errors by using heuristic algorithms or additional decoding methods.
    - The importance of preserving SCP (Stream Copy Protection) files is emphasized, as they retain the original data and protection mechanisms.
    - Different disk drives and heads are mentioned, but the speaker recommends using reliable drives like the TIAC Triad and Sony 920 for three and a half-inch disks.
    - The speaker highlights the need for careful and patient data recovery, rather than rushing through the process.
    - The possibility of creating an SAP (Software Preservation) archive is suggested for preserving software files.
    - The advantages of the HFE (HxC Floppy Emulator) and SCP formats for data preservation are discussed, along with the possibility of extending SCP to capture additional data.