So i made a tool in PHP that adds a custom meta-data to a .epub-file.
After that i used the kindlegen-tool to convert my .epub to a .mobi.
Now im looking for some code-snippets or samples to read my .mobi-file, in detail: I want to read my custom meta-data from that .mobi-file.
mobi files are more or less XHTML packaged and zipped files like ePubs.
So you can simply change the .mobi file extension to .zip, extract the content and look inside.