HuCARDとCD-ROM両対応のPC Engine互換機 http://okane.robots.jp/2023/05/22/hucard%e3%81%a8cd-rom%e4%b8%a1%e5%af%be%e5%bf%9c%e3%81%aepc-engine%e4%ba%92%e6%8f%9b%e6%a9%9f/