Shar wants to know how he can print on a miniCD disc using his Epson printer. Leo says that nobody uses those anymore and as such, there is no real way other than to create your own adapter. You could 3d print one. Leo also says that there is an open-source printer driver repository called CUPS. If there's a driver for your printer, it's there.
Yes he can play the CD's he already owns. It just comes with a CD player that can play DVD Audio. There are two higher quality formats that never really took off. One is SA-CD, and the other is DVD Audio. Both are capable of 5.1 surround and much higher bitrate audio. There aren't many CDs or DVDs in that format, however. He still would benefit from having a higher end sound system, and he could even buy a DVD Audio disc to try it. One place to check for them would be Amazon. They have a whole category for DVD Audio.