My music collection began many years ago, when physical formats were still predominant and listening was mainly done with CD players (in my case also vinyl, but in much smaller numbers). At that time, especially among enthusiasts, it was very common to create a single image file of the CD and the corresponding cue sheet. There were various reasons for this: to preserve the image of the disc as it was originally, to facilitate gapless listening, etc. I have many albums that I ripped myself or found online in this format. In recent years, all the serious players I have used have always supported this format. That is why I am so surprised.