repaired games from bad tapes

Use this forum to submit new files for the download section of the archive. I will check each submission and upload it to the archive on a regular basis.
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.mad.
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Re: repaired games from bad tapes

Post by .mad. » Mon Jun 10, 2019 6:57 pm

another one found, and removed from the missing list. :D
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pharaoh's curse.png
pharaoh's curse.png (2.58 KiB) Viewed 269 times
Pharaoh's Curse (Apex).cas
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robcfg
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Re: repaired games from bad tapes

Post by robcfg » Tue Jun 11, 2019 6:19 pm

I've been taking a look at the Cuthbert In The Mines wav file, and it has been generated from the cas file.

That usually isn't a problem unless the game relies on the pauses between blocks to do stuff. You'd need a wav taken from the original tape instead.
sorry.... i know you don't like these mods. ;)
it is only emulator compatability i am looking for.
Well, I tried on MAME 0.210, and it loads in 3:42 which is the length of the wav file. Which version of MAME and what kind of computer are you using? It seems a problem either with your setup or an older MAME version.

Regarding 'emulator compatability', it's actually the emulators that have to correctly mimic the working of the real machine. Otherwise, it will be quite confusing having different versions of the dumps.

Nothing against fixing broken dumps, of course.

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.mad.
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Re: repaired games from bad tapes

Post by .mad. » Wed Jun 12, 2019 11:18 am

Hi Rob,

i am using MAME 208 with the old NTSC artifacting from MAME 202, without the conflicting joystick keymaps on the NUMPAD. :D
i have not edited any of the COCO /Dragon loading routines.
Unless Perno70 has updated the dragon/coco files very recently... and i missed the update.

the cuthbert loadscreen error even shows in Xroar, so i guess it must only be a duff wave.
and the good CAS was sourced elsewhere.
Xroar speeds up the loading, so i only noticed the longer time using MAME as it is displayed on the screen.

The longer load time problem is only in 3 or 4 CAS files i found so far, so it's more than likley a misread by MAME,
with a particular headerless loader.

here are the versions i have. good and bad.
Regarding 'emulator compatability', it's actually the emulators that have to correctly mimic the working of the real machine. Otherwise, it will be quite confusing having different versions of the dumps.
I 100% agree with you there. :D
The CAS load routine needs to get updated!.

But until it does... i have no other option than to edit the CAS files, if i want to play the games in MAME.
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cuth mines [cas+wav].zip
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.mad.
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Re: repaired games from bad tapes

Post by .mad. » Wed Jun 12, 2019 6:44 pm

Hi Rob,

can you take a look at this BAD wave and try to fix it?. :mrgreen:
i don't know how to use your util correctly, i need the manual or a tutorial video. :cry:

Back Track sample [maybe same as original].
after a failed attempt, the saved code (first few blocks) looked identical to this CAS copy.
Attachments
Back Track (Sample)[bad wav].zip
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Back Track [possible sample].cas
(33.77 KiB) Downloaded 11 times

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robcfg
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Re: repaired games from bad tapes

Post by robcfg » Wed Jun 12, 2019 8:34 pm

Regarding Cuthbert in the Mines, there was indeed something fishy.

The wav file produces a correct cas file, but different from the good one that we have at the archive.

So, I generated a new wav file from the right cas file and it seems to be loading ok.

I did the same with Back Track. I don't know where did you get that file, or why don't you use cas files instead of wav files.

Try these new files.
Attachments
Cuthbert In The Mines (1983)(Microdeal)[!].wav.zip
(60.13 KiB) Downloaded 13 times
Backtrack (198x)(Incentive)[!].WAV.zip
(97.27 KiB) Downloaded 13 times

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.mad.
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Re: repaired games from bad tapes

Post by .mad. » Thu Jun 13, 2019 9:53 am

Thanks Rob,

I only want to use CAS files.
That's whole the problem really. :)

with Cuthbert, i only tested the WAV after i noticed the CAS took 8 mins to load.
then i saw the bad load screen.
so i thought (wrongly) the extra load time might have something to do with the CAS conversion.

As for Back Track (pre-release sample), only the BAD wav is known to exist. ;)
and i was wondering if the code was identical to the official realase?.
your backtrack WAV when converted to CAS, is identical to the one i posted above.
did you edit (fix) the BAD sample WAV?.

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