Why is HeadacheLife's firmware restricted?

firmware
headachelife
hl
hl-dt-st
lg

#1
  • 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.


#2

HeadacheLife?


#3

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.


#4

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


#5

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.


#6

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.


#7

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


#8

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).


#9

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.


#10

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‼).