The 1998 introduction of the Avid Symphony marked the transition from ABVB to the Meridien hardware, allowing for uncompressed SD editing. This introduction was also the first version of Media Composer XL available for the Windows operating system. Many users were concerned that Avid would abandon the Mac platform, which they eventually did not do. Media Composer XL versions 8 through 12.0.5 (models MC Offline XL, MC 1000 XL, MC 9000XL) were built around Meridien hardware. Compression options were expressed in ratios for the first time in the evolution of the product. Even though the video board had changed, the audio I/O was still handled by the Avid/DigiDesign 888 (16bit 48K) hardware. At this time, 16x9 aspect ratios began to be supported.