Hello trid users,
some days ago i run TrID on Corel DESIGN graphics with file name extension
des. Such files are only identified by riff.trid.xml as "Generic RIFF
container" ( see appended output/trid-old.txt).
When i run tridscan on samples with version 10.0 i get a trid
definition file des-corel-v10.trid.xml. Some information about such graphic
is found on fileformats archiveteam website. This is now expressed by line
<RefURL>
http://fileformats.archiveteam.org/wiki/Corel_Designer</RefURL>
Characteristic is the second riff chunk DESC followed by the 2 byte sized
version tag vrsn with value 7E04 for this version. This is expressed by XML
construct:
<Bytes>444553417672736E020000007E04</Bytes>
<ASCII> D E S A v r s n . . . . ~ .</ASCII>
<Pos>8</Pos>
With every next version last letter of second riff chunk is is incremented
by 1 unit. Also the value of vrsn is raised. So the next version 10.5 is
described des-corel-v10,5.trid.xml with changed XML construct:
<Bytes>444553427672736E02000000B004</Bytes>
<ASCII> D E S B v r s n . . . . . .</ASCII>
<Pos>8</Pos>
Third riff based version is 12. This is described by des-corel-v12.trid.xml
with changed XML construct:
<Bytes>444553437672736E02000000E204</Bytes>
<ASCII> D E S C v r s n . . . . . .</ASCII>
<Pos>8</Pos>
With the three new definition files the undetected DES samples are now
recognized ( see appended output/trid-new-v.txt). TrID definitions, some
examples and output are stored in archive des.zip. I hope that my XML files
can be used in future version of triddefs.
With best wishes
Jörg Jenderek
