This IDC study presents data for and an analysis of the worldwide CD-ROM, DVD-ROM, CD-R/RW, combo, and DVD-Rec markets. Data for 3Q03?3Q04 is based on actual sales figures; data for 4Q04?3Q05 is forecast. Storage formats are grouped into five categories: CD-ROM, DVD-ROM, CD-RW, combo, and DVD-Rec.

Detailed data for each category is given in terms of market value and unit shipments. Market share is given for ROM versus recordable drives. Additionally, unit shipments are analyzed and forecast by slim versus half-height form factor.

The CD/DVD drive market has continued to grow nicely in 2004. The home PC market has been aggressively adopting DVD burners. However, there are also continued opportunities for older technologies in the commercial PC market.

"CD/DVD drive vendors need to get ready for increasingly stiff competition as the DVD speed race is coming to an end and mainstream blue laser?based products are still a few years away," said Wolfgang Schlichting, research director, Removable Storage at IDC.