user3739: I have many of my old games in PGN format and a still quite many in paper format that I want to make digitally available. 
I prefer make the digital versions in an open format that is widely used. 
What are the most commonly used open digital formats for chess games?

user3405: The most used is PGN. 
You can arrange them in a database once you have enoguh PGNs to make it worth it. If you have money, ChessBase is great. If you want a free option there is SCID vs. PC (SCID for Linux)
Some links:

http://en.wikipedia.org/wiki/Portable_Game_Notation
http://shop.chessbase.com/en/products/chessbase12_download
http://scidvspc.sourceforge.net/
http://scid.sourceforge.net/

Note : 
SCID vs PC is better than the Windows version of SCID. My opinion of course.

3739: <p>I have many of my old games in PGN format and a still quite many in paper format that I want to make digitally available. </p>

<p>I prefer make the digital versions in an open format that is widely used. </p>

<p>What are the most commonly used open digital formats for chess games?</p>
 3405: <p>The most used is PGN. </p>

<p>You can arrange them in a database once you have enoguh PGNs to make it worth it. If you have money, ChessBase is great. If you want a free option there is SCID vs. PC (SCID for Linux)</p>

<p>Some links:</p>

<ul>
<li><a href="http://en.wikipedia.org/wiki/Portable_Game_Notation">http://en.wikipedia.org/wiki/Portable_Game_Notation</a></li>
<li><a href="http://shop.chessbase.com/en/products/chessbase12_download">http://shop.chessbase.com/en/products/chessbase12_download</a></li>
<li><a href="http://scidvspc.sourceforge.net/">http://scidvspc.sourceforge.net/</a></li>
<li><a href="http://scid.sourceforge.net/">http://scid.sourceforge.net/</a></li>
</ul>

<p>Note : </p>

<p>SCID vs PC is better than the Windows version of SCID. My opinion of course.</p>
