BSArc and BSA

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(Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|bsa}}, {{ext|bsn}} |released=1991? }} '''BSArc''' and '''BSA''' are compressed archive utilities, and a...")
 
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== Identification ==
 
== Identification ==
A possibly signature for BSArc's .bsa files is {{magic|0x00 0xAE}} at offset 1, followed by a byte with value {{magic|0x02}}, {{magic|0x03}}, or {{magic|0x07}}.
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A possible signature for BSArc's .bsa files is {{magic|0x00 0xAE}} at offset 1, followed by a byte with value {{magic|0x02}}, {{magic|0x03}}, or {{magic|0x07}}.
  
 
BSA's .bsn files probably begin with signature {{magic|0xFF 'B' 'S' 'G'}}. [[IDArc]] says this sequence may also start at offset 1 or 3.
 
BSA's .bsn files probably begin with signature {{magic|0xFF 'B' 'S' 'G'}}. [[IDArc]] says this sequence may also start at offset 1 or 3.

Latest revision as of 16:01, 16 November 2020

File Format
Name BSArc and BSA
Ontology
Extension(s) .bsa, .bsn
Released 1991?

BSArc and BSA are compressed archive utilities, and associated file formats. They were developed by PhysTechSoft (PTS), a Russian software company better known for the PTS-DOS operating system (Wikipedia article). BSArc is also credited to Serg Babitchew. The relationship between BSArc and BSA is unclear.

BSA, at least, was apparently available for a number of different platforms. It lists DOS, Windows, OS/2, QNX, and Unix.

Contents

[edit] Identifiers

Confusingly, BSArc's default file extension is .bsa, and BSA's is .bsn.

[edit] Identification

A possible signature for BSArc's .bsa files is 0x00 0xAE at offset 1, followed by a byte with value 0x02, 0x03, or 0x07.

BSA's .bsn files probably begin with signature 0xFF 'B' 'S' 'G'. IDArc says this sequence may also start at offset 1 or 3.

IDArc also identifies a format it calls "BS2/BSArc", which starts with 0xD4 0x03 'S' 'B' ' ' 0x00.

[edit] Software

[edit] Links

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