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-   -   Trolls OCS (http://eab.abime.net/showthread.php?t=69316)

absence 20 May 2013 11:42

Trolls OCS
 
Does anyone have original disks for the OCS version of Trolls? They're missing from SPS - they only have two AGA versions (one is mislabeled as ECS).

absence 21 May 2013 23:41

Just to make sure there is no misunderstanding: I'm not asking for the game, I'm asking that someone submit it to SPS. :)

MethodGit 18 July 2013 00:10

This error was brought up nearly three years ago. Frustrating to see it still hasn't been resolved.

mai 18 July 2013 17:48

By the way, what is the difference between the two available IPF releases(0155 and 0996)?
For me both releases are exactly the same Disks, maybe different dumping methods ?

MethodGit 18 July 2013 19:34

Maybe. That or sometimes the same drive can produce different 'bits' during a dumping process. It must not be easy to get identical 1:1 dumps every time.

mai 18 July 2013 19:44

Quote:

Originally Posted by MethodGit (Post 900608)
Maybe. That or sometimes the same drive can produce different 'bits' during a dumping process. It must not be easy to get identical 1:1 dumps every time.

...or different preservation format, one of both is probably outdated.

Mad-Matt 18 July 2013 19:58

One of them could be the A1200 pack in version and the other retail?

absence 19 July 2013 13:42

Quote:

Originally Posted by MethodGit (Post 900519)
This error was brought up nearly three years ago. Frustrating to see it still hasn't been resolved.

Wow! When I submitted a support ticket to SPS one year ago, neither of the two guys who responded knew about the error...

Quote:

Originally Posted by Mad-Matt (Post 900614)
One of them could be the A1200 pack in version and the other retail?

That would make sense.

mai 19 July 2013 14:19

Is there any different protection than the manual protection?

absence 19 July 2013 17:09

Quote:

Originally Posted by mai (Post 900725)
Is there any different protection than the manual protection?

The bootblock of AGA and OCS versions contains the string "Copylock Amiga (c)1988-90 Rob Northen Computing, U.K. All Rights Reserved."

dlfrsilver 19 July 2013 17:40

it's copylocked yes :)

StingRay 19 July 2013 18:26

Not true, game only uses Rob Northen's loader routines. It has no on-disk protection. I only checked the AGA version though as I have no original of the OCS version.

MethodGit 19 July 2013 19:21

Quote:

Originally Posted by StingRay (Post 900760)
Not true, game only uses Rob Northen's loader routines. It has no on-disk protection. I only checked the AGA version though as I have no original of the OCS version.

You can use the disk images from the OCS zip on WHDownload. That's an unaltered original AFAIK.

absence 20 July 2013 01:56

Quote:

Originally Posted by StingRay (Post 900760)
Not true, game only uses Rob Northen's loader routines. It has no on-disk protection.

Ah, that explains why X-Copy's checkdisk was all zero :)

Sandro 20 July 2013 06:19

yes the images from whdownload site are originals ones
I renamed the images to ipf and worked perfect on winuae, seems there is no copy protection,only protection codes you need the manual to bypass it

mai 20 July 2013 14:06

Quote:

Originally Posted by Mad-Matt (Post 900614)
One of them could be the A1200 pack in version and the other retail?

Without any bit of difference.
Makes it sense to preserve two disksets, which are exactly the same images?

absence 20 July 2013 15:06

Quote:

Originally Posted by mai (Post 900894)
Without any bit of difference.
Makes it sense to preserve two disksets, which are exactly the same images?

It's possible that there are differences in metadata present on the floppies (but not readable by the Amiga). If that's the case it makes sense from a preservation/documentation viewpoint, but not from a practical viewpoint. I don't know if there IS such a difference though, someone familiar with the IPF format would have to answer that.

MethodGit 20 July 2013 15:09

Quote:

Originally Posted by Sandro (Post 900837)
yes the images from whdownload site are originals ones
I renamed the images to ipf and worked perfect on winuae, seems there is no copy protection,only protection codes you need the manual to bypass it

Erm, you don't need to change the extension to .ipf - .adf will suffice!

Sandro 20 July 2013 16:09

Quote:

Originally Posted by MethodGit (Post 900906)
Erm, you don't need to change the extension to .ipf - .adf will suffice!

but I assumed those images are not adf because are not 901.120 bytes
maybe extended adf ?

mai 20 July 2013 16:17

Quote:

Originally Posted by absence (Post 900905)
It's possible that there are differences in metadata present on the floppies (but not readable by the Amiga). If that's the case it makes sense from a preservation/documentation viewpoint, but not from a practical viewpoint. I don't know if there IS such a difference though, someone familiar with the IPF format would have to answer that.

Anyway, the SPS-team do not make needed corrections on SPS and HOL page, althought the facts are known for a long time!:(


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