Editing XDCAM (section)

===Professional Disc (XDCAM and XDCAM HD)===
[[File:Sony PFD23 20060615.jpg|thumb|Professional Disc]]
{{Main article|Professional Disc}}
The Professional Disc was chosen by Sony as its medium for professional non-linear video acquisition for a number of reasons, outlined in their white-paper [https://web.archive.org/web/20120415114421/http://pro.sony.com/bbsccms/assets/files/micro/xdcam/solutions/pro_disc.pdf ''Why Sony Adopted Professional Disc'']. This disc is similar to [[Blu-ray Disc]] and holds either 23&nbsp;GB of data (PFD23, single-layer, rewritable), 50&nbsp;GB (PFD50, dual-layer, rewritable), 100&nbsp;GB (PFD100TLA, triple-layer, rewritable) or 128&nbsp;GB (PFD128QLW, quad-layer, write-once).

Essentially, the Professional Disc format was deemed to be a suitable, cost effective and easy step forward. The discs are reliable and robust, suitable for field work (something which has previously been a problem with many disc-based systems). Additionally, the cost of media is comparable to existing professional formats.