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== Usage ==
Despite the criticism, PsF quickly became a de facto standard for high quality film-to-video transfer. One of the documented examples of PsF usage is the 2003 transfer of the film "[[Terminator 2: Judgment Day]]" to [[DVD]], performed by [[Artisan Entertainment]] and [[THX]]. The original 24 frame/s movie was converted to PsF format and recorded to [[D5 HD|HD-D5]] videotapes. This allowed for the creation of a [[digital master]] that was nearly identical to the original film, and made it possible to edit digitally at the native frame rate.<ref>{{cite web|url=http://www.dtvforum.info/lofiversion/index.php/t16581.html|title=Terminator 2: Extreme Edition|url-status=dead|archiveurl=https://web.archive.org/web/20080531060116/http://www.dtvforum.info/lofiversion/index.php/t16581.html|archivedate=2008-05-31}}</ref> The same digital master appears to be used for the 2006 [[Blu-ray Disc]] transfer of the movie.<ref>{{cite web |last=Bracke |first=Peter M. |date=June 27, 2006 |title=Terminator 2: Judgment Day (Blu-ray) |url=http://bluray.highdefdigest.com/terminator2.html |url-status=dead |archive-url=https://web.archive.org/web/20071018035700/https://bluray.highdefdigest.com/terminator2.html |website=Hi-Def Digest|archive-date=2007-10-18 }}</ref>
 
PsF has been recognized by [[Rec. 709#Frame rate|Recommendation ITU-R&nbsp;BT.709]] as a legitimate way to transport progressive frames within an interlaced system. 25PsF and 30PsF rates have been added to the specification in addition to the more established 24PsF. "Fractional" frame rates, having the above values divided by 1.001, are also permitted; the resulting 23.976PsF and 29.97PsF rates are used in 59.94&nbsp;Hz systems. No change from 59.94 Hz systems to 60 Hz (although provided for and anticipated) has occurred allowing display on analog NTSC color televisions and monitors after down-conversion and encoding.
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* '''24PsF''' (48sF, 1080sf24, 1920×1080/24/1:1SF) is the original PsF format, which is used in professional equipment for film-to-video transfer, for high definition mastering and for video exchange between networks. This may be the first universal video standard which transcends continental boundaries, an area previously reserved for film.<ref>{{cite web |last=Wiedemann |first=Steve |date=2005 |title=24/P HDTV: The Fall of Film Production |url=http://www.filmmaking-careers.com/film-production.html |website=Filmmaking Careers}}</ref>
* '''25PsF''' (1080sf25, 1920×1080/25/1:1SF) is used in 50&nbsp;Hz systems for production that originates on video and is targeted for television distribution.
* '''29.97PsF''' (1080sf29, 1920×1080/29.97/1:1SF) formats are sometimes used in 60&nbsp;Hz systems for sitcoms and music shows.<ref>{{cite web|url=http://www.avsforum.com/avs-vb/showthread.php?p=13998888#post13998888|title='Beside You in Time' by Nine Inch Nails was encoded as interlaced.|date=March 2005 }}</ref><ref>{{cite web |last=Deering |first=Kris |date=November, 2008 |title=Sony BDP-S350 Blu-ray Player review |url=http://hometheatermag.com/discplayers/sony_bdp-s350_blu-ray_player/ |url-status=dead |archive-url=https://web.archive.org/web/20090219000355/https://www.hometheatermag.com/discplayers/sony_bdp-s350_blu-ray_player/ |website=Home Theatre|archive-date=2009-02-19 }}</ref> 29.97PsF as well as '''30PsF''' (30p, 1080sf30, 1920×1080/30/1:1SF) formats are gaining popularity as an acquisition format for Web video delivery, because most video hosting web sites cannot stream video with rates higher than 30 frame/s.
 
==References==