Data Recovery and Disk Utilities Forum @R-TT

Hello,

I am about to buy R-Studio because I have a Pelco DVR that formatted the HDD when added a new drive, it is a partition type 0x83, I already add the custom signatures for the files and I did a scan using the Demo version, I found 65k files, that is great, but the files size are wrong, because the signature I did just have starting signature.

I know that the files from Pelco have a fixed size, 64MB, I order to buy R-Studio I need to know if there is a way to define the file size as part of the signature.

Here are the file Signatures I added:

<?xml version="1.0" encoding="UTF-8"?>
<FileTypeList version="2.0">
<FileType id="50001" group="Metadata" description="Pelco DAT" features="" extension="dat">
<Begin combine="AND">
<Signature>\x00\x03LGEDB</Signature>
</Begin>
<End combine="OR"/>
</FileType>
<FileType id="50002" group="Metadata" description="Pelco IDX" features="" extension="idx">
<Begin combine="AND">
<Signature>\x00\x03LGEIDX</Signature>
</Begin>
<End combine="OR"/>
</FileType>
<FileType id="50003" group="Metadata" description="Pelco EVT" features="" extension="evt">
<Begin combine="AND">
<Signature>\x00\x03LGEEVT</Signature>
</Begin>
<End combine="OR"/>
</FileType>
<FileType id="50004" group="Metadata" description="Pelco POS" features="" extension="pos">
<Begin combine="AND">
<Signature>\x00\x03LGEPOS</Signature>
</Begin>
<End combine="OR"/>
</FileType>
<FileType id="50005" group="Metadata" description="Pelco DAT" features="" extension="dat">
<Begin combine="AND">
<Signature>\x00\x03LGEDB</Signature>
</Begin>
<End combine="OR"/>
</FileType>
</FileTypeList>


Please help me!!

Thanks in advance,
Cesar

I cannot verify your file signatures, as I don't have a Pelco DVR.
Right now, R-Studio cannot specify file sizes for Known File Types, but we're going to implement that feature soon.

This can actually be accomplished by using the file start also as the closing signature with an offset of the desired file size. It's not a glorious solution and takes a bit of tinkering to get it just right, but it works in most cases.