I. はじめに ※この記事は、元々想定読者を考えて英語で書いた記事を日本語に訳したもの。英語版はこちら。I wrote the original post in English, as shown below. yorokuyadoroku.hatenablog.com 最近は、CDを買うのをほぼ止めて、ダウンロード販売にもっぱ…

I. Introduction How reliable are online stores selling high-resolution music files, such as HD-Tracks, Presto Music, Channel Classics and so on? Nowadays, I almost completely stopped buying CD and instead heavily rely on them. Most of the …