Ye olde printer software plus CD creator software...
For Epson Stylus C42 series: Disc Vol. 1.0 Printer Driver and Utility and Disc Vol. 1.2 Multilingual version.
For Lexmark 5400 series: installation software and user guide for Windows and Macintosh, and same for Lexmark 910 series. Easy CD Creator Standard Edition (Roxio)
Just in case anyone has the original use for them, before they are repurposed. In good condition.