Monster Hunter Stories PS4: "Ambiguous title support found from fallback."

[modusc896d352]

i don't have the full "log" right now but the short version is the extract_arc module, when used on Monster Hunter Stories "nativePS4" directory (from PS4 ver only), doesn't recognize a single arc file from said directory even after all of them were scanned beforehand.

just for fun, i decided to run the extract_arc module from revil_toolset, like so:

revil_toolset.exe extract_arc --title mhs --platform PS4 "mhs_ps4\nativePS4"

next, it does a deep scan of all existing arc from the specified path.
and finally, at least one error message is gratuitously given to every single arc file that extract_arc cannot deal with.

(...)
[0x000028C8] Ambiguous title support found from fallback.
(...)
[0x00003A98] Ambiguous title support found from fallback.
(...)
[0x00003F68] Ambiguous title support found from fallback.
(...)
[0x00002BF4] Ambiguous title support found from fallback.
(...)
[0x00003A98] Ambiguous title support found from fallback.
(...)
[0x000028C8] Ambiguous title support found from fallback.
(...)
[0x00003F68] Ambiguous title support found from fallback.
(...)
[0x00002BF4] Ambiguous title support found from fallback.
(...)
[0x00003A98] Ambiguous title support found from fallback.
(...)
[0x000028C8] Ambiguous title support found from fallback.
(...)
[0x00003F68] Ambiguous title support found from fallback.
(...)
[0x00002BF4] Ambiguous title support found from fallback.
(...)
[0x00003A98] Ambiguous title support found from fallback.

no exception.

[PredatorCZ]

PS4 version is not yet supported.
You might want to try Android or IOS platforms but there might be some rare cases of missing or wrong extension names tho.

[modusc896d352]

tested extract_arc with b07d_m_01.arc with IOS set as the platform:
revil_toolset extract_arc --title mhs --platform IOS b07d_m_01.arc
doing so resulted in this error:
⛔ [0x000084D8] unknown compression method

i did the same thing but with Android instead of IOS:
revil_toolset extract_arc --title mhs --platform Android b07d_m_01.arc
same error:
⛔ [0x000084D8] unknown compression method

root.arc (from nativePS4\sa\PS4) did not trigger an error message but no files were extracted from there either.
i may be using extract_arc wrong but this is all i can report for now.

---

tested extract_arc with all arc from PS4 version of the game, with Android set as the platform:
revil_toolset extract_arc --title mhs --platform Android --create-zip nativePS4

what happened is, after a deep scan, i ended up with not only four "unknown compression method" errors, it triggered out a "SIGABRT" error too, which caused revil_toolset to close all by itself.

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   [0x00002A4C] Processing: nativePS4/archive/battle/b00d_m_00.arc
   [0x00003AF0] Processing: nativePS4/archive/battle/b01d_m_00.arc
   [0x000035F4] Processing: /nativePS4/archive/battle/b01d_m_01.arc
   [0x0000112C] Processing: nativePS4/archive/battle/b01d_m_02.arc
✔ Scanning folder: nativePS4 8966 folders, 89316 files, 5586 found.
⛔ [0x0000112C] unknown compression method
⛔ [0x00003AF0] unknown compression method
⛔ [0x000035F4] unknown compression method
⛔ [0x00002A4C] unknown compression method
+----------------------------------------------------------+0%
| APPLICATION HAVE CLOSED UNEXPECTEDLY, CODE: 22 (SIGABRT) |0%
+----------------------------------------------------------+0%
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C:\####\####\########\RevilToolset-v2.10.172-win64>       0%