37 lines
1.9 KiB
Markdown
37 lines
1.9 KiB
Markdown
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# PSO Ep 1 & 2 (Gamecube) Unencrypted PRS-compressed .gci Quest Extractor
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This is a specialized tool written **specifically** to extract quest `.bin` and `.dat` files from `.gci` dumps of
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Gamecube memory card quest files that were saved using a special Action Replay code which included an embedded
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decryption key in the save file and then were manually decrypted with that decryption key.
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Put another way, this tool will **only** work on `.gci` files found on [this gc-forever.com forum thread](https://www.gc-forever.com/forums/viewtopic.php?f=38&t=2050&start=75).
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And only if they are indicated to be "unencrypted PRS compressed quests" and **not** "encrypted quests w/ embedded
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decryption key".
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**You cannot use this tool to extract quests from any arbitrary `.gci` file you have on your Gamecube memory cards!**
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(Maybe one day someone will reverse-engineer the method in which the Gamecube client derives the encryption key
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from the player's serial number and access key. But until then, it is not possible for this tool to work with any
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arbitrary `.gci` file.)
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## Usage
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Quest files on a Gamecube memory card are split into two files per quest. One file contains the quest `.bin` data, and
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the other contains the quest `.dat` data. Therefore, two `.gci` files need to be provided to this tool.
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Special care should be taken to ensure that the two `.gci` files you provide are a matching pair **and** that they are
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provided in the right order! **The file containing the `.bin` data should be specified first.**
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```text
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gci_extract 8P-GPOE-PSO______NNN.gci 8P-GPOE-PSO______NNN+1.gci
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```
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This will read out the data, parse and validate the quest information and save the raw (compressed) `.bin` and `.dat`
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file using a filename automatically derived from the quest's ID number.
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Or, you can provide your own `.bin` and `.dat` filenames if you wish:
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```text
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gci_extract 8P-GPOE-PSO______NNN.gci 8P-GPOE-PSO______NNN+1.gci myquest.bin myquest.dat
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```
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