Answers.Body: <p>This sounds like <a href="https://wiki.mobileread.com/wiki/IMP" rel="nofollow noreferrer">IMP format</a>. The IMP file is a container for other directories files, namely (1) directories ending in <code>.RES</code> and (2) files ending in <code>.FRK</code> and <code>.INF</code>. From mobileread.com (no affiliation):</p>
  
  <blockquote>
    <p>IMP is an intermediate file format used to store eBook content for several eBook Readers, most notably the <a href="https://wiki.mobileread.com/wiki/EBookwise-1150" rel="nofollow noreferrer">eBookwise-1150</a> and the <a href="https://wiki.mobileread.com/wiki/REB_1200" rel="nofollow noreferrer">REB 1200</a>. These devices are end user names for products called the ETI-2 and ETI-1 respectively from <a href="http://ebooktechnologies.com/" rel="nofollow noreferrer">http://ebooktechnologies.com/</a> (no longer available) The Wayback machine displays the last time this site was available Jun 20, 2010. Site downloads are still available from <a href="http://www.ebooksystem.net/support_download.htm" rel="nofollow noreferrer">http://www.ebooksystem.net/support_download.htm</a></p>
  </blockquote>
  
  <p>You can find a list of compatible software <a href="https://wiki.mobileread.com/wiki/IMP_software" rel="nofollow noreferrer">here</a>.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-06T17:29:56.077Z
Answers.LastActivityDate: 2018-10-06T17:29:56.077Z
Answers.UserDisplayName: elixenide
Body: <p><strong>Background:</strong> My dad died last year and I inherited sd cards (not micro) in plastic cases. These cards have several directories that all end in .RES</p>
  
  <p>Each directory has about 30 files in it.
  Two of the 30 files in each directory have extensions: one is DATA.FRK and the other is RSRC.INF
  The other 28 files are each 4 letters long of random looking strings with no extension. Most of the files have a date from 2006</p>
  
  <p>I was able to open the RSRC.INF file and it looks to be an author's name and the title of a book? article? something.</p>
  
  <p><strong>Questions:</strong></p>
  
  <ul>
  <li><p>Can you tell me what is on these sd cards?</p></li>
  <li><p>Is there a windows software/opensource software that could read these
  files?</p></li>
  <li>Should I be looking for an old piece of ebook hardware or just
  reformat the cards and use them with an older model camera?</li>
  </ul>
  
Tags: <file-format>
Title: SD Cards with Unusual File Types
UserDisplayName: J W
ThreadText: # SD Cards with Unusual File Types
  
  (Asked by: username_0 on 2018-10-06)
  
  **Background:** My dad died last year and I inherited sd cards (not micro) in plastic cases. These cards have several directories that all end in .RES
  
  Each directory has about 30 files in it.
  Two of the 30 files in each directory have extensions: one is DATA.FRK and the other is RSRC.INF
  The other 28 files are each 4 letters long of random looking strings with no extension. Most of the files have a date from 2006
  
  I was able to open the RSRC.INF file and it looks to be an author's name and the title of a book? article? something.
  
  **Questions:**
  
  * Can you tell me what is on these sd cards?
  * Is there a windows software/opensource software that could read these
    files?
  * Should I be looking for an old piece of ebook hardware or just
    reformat the cards and use them with an older model camera?
  
  **Tags:** file-format
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-10-06. Score: 1
  
  This sounds like [IMP format](https://wiki.mobileread.com/wiki/IMP). The IMP file is a container for other directories files, namely (1) directories ending in `.RES` and (2) files ending in `.FRK` and `.INF`. From mobileread.com (no affiliation):
  
  > IMP is an intermediate file format used to store eBook content for several eBook Readers, most notably the [eBookwise-1150](https://wiki.mobileread.com/wiki/EBookwise-1150) and the [REB 1200](https://wiki.mobileread.com/wiki/REB_1200). These devices are end user names for products called the ETI-2 and ETI-1 respectively from <http://ebooktechnologies.com/> (no longer available) The Wayback machine displays the last time this site was available Jun 20, 2010. Site downloads are still available from <http://www.ebooksystem.net/support_download.htm>
  
  You can find a list of compatible software [here](https://wiki.mobileread.com/wiki/IMP_software).
  
  
  ---
  
  