Why is HeadacheLife's firmware restricted?

  • No downgrading.
  • Encountering damage once means permanent speed handicap until next ejection.
  • Terrible CDDA damage handling.

* No error scanning.

  • ×12 CAV speed limit on every DVD with Video_TS folder.

I wonder, why ODD manufacturers add restrictions to a working firmware? At least, not even TSST had advanced error scanning. And HeadacheLife listens to speed commands instantly, without delay.

HeadacheLife?

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At least, HeadacheLife has am excellent error correction at high speeds, even better than at low speeds.
Even the HeadacheLife H20N from 2006 handled disc rot at ×52 CAV better than the TSST SE208. And HeadacheLife also reads VCDs at full CAV speeds.

HeadacheLife BU20 also spins down gently instead of breaking, gladly.

Sometimes they aren’t that terrible.
GDR8162B limited VCD speeds to ×4 CAV, but all new TSSTs are still limited to ×16CAV for VCD thus probably also for SVCD and CVD.

I must admit, that HL-DT-ST BU20 has a truly excellent performance in error management and speedy spinup. Much faster than TSST SU208CB.

The SU208CB is better at DVDs but also as terrible as the BE14NU40 for audio CDs.

I must admit:
HeatachiLife('s) BE14NU40 is excellent at overburning SK CD-RW’s a few seconds more.

HeadacheLife’s speed selection is not that bad.

BU20 on DVD:

  • ×2 CLV = 02770 KiB/s (missing on TSST and LiteOn laptop drives)
  • ×3 CAV = 04155 KiB/s (missing on TSST laptop drives)
  • ×4 CAV = 05540 KiB/s at outermost edge.
  • ×6 CAV = 08310 KiB/s at outermost edge.
  • ×8 CAV = 11080 KiB/s at outermost edge.

Reference: ×1 CLV on DVD is 1385000 bytes per second, on CD it is 176400 bytes per second (CDDA and VCD bitrate).

The BU20 wakes up very quickly from standby, and has no VCD speed limit.

HL’s weaknesses

  • No read during spin up (also on TSST).
  • No error scanning (already mentioned).
  • Laptop drive: Bad CD middle holder design requires pushing hard to insert disc.
  • Detects MBi DVD-R with unfinalized UDF as finalized.

But I admit, the BU20 handles damaged audio CDs pretty well.

Apparently, HL DT ST has an excellent power management.

.A desktop GDR-H20N (normally operates at 12V) runs at 6V of input voltage (only at two thirds of the original speed and slow acceleration, but still works‼).