In 2002, there were great fears that the disc would become unreadable as computers capable of reading the format had become rare (and drives capable of accessing the discs even rarer). Aside from the difficulty of emulating the original code, a major issue was that the still images had been stored on the laserdisc as single-frame analogue video, which were overlaid by the computer system’s graphical interface. The project had begun years before JPEG image compression and before truecolour computer video cards had become widely available.