no screener released before. The scene VCDs popped up in 1998, but digital unlicensed versions of films already appeared in early 1997 on private FTP networks. Eviliso, VCD-Europe, FTF and Immortal VCD are groups that have released VCD movies. In 1999 there were 15 to 20 groups. Because of its low quality, VCD releases declined in favor of SVCD and XviD. VCDs are often larger than these higher quality files, making VCDs even less attractive. VCDs once used for music videos got their own set of standards on October 1, 2002. SVCD Scene rules require the releasing group to spread SVCDs in .bin/.cue files, that fit on 700 MiB CDs. One movie typically uses two CDs, although length may force the release to be a 3 or 4 CD release. Content source is sometimes analog, such as Cam, Telecine or telesync releases. Also R5, DVDSCR or retail DVD is used as SVCD source. The advantage of SVCD is that it can be played on any standalone DVD player, but when DivX-capable players are taking over the market and more bandwidth becomes available to download DVDRs, SVCD became obsolete. Around 2007, the stream of SVCD releases from the scene died out. Standard definition video Standard definition rips have a resolution that is lower than high-definition video. DivX and Xvid for retail and bootleg sources MPEG-4 release standards are set in the so-called TDX rules. The DivX codec originally gained popularity because it provided a good compromise between film quality and file size. Approximately 25% of the space occupied by DVD is enough for a DivX encode to have DVD quality output. The first standards were created by meetings and debates of Team DivX (TDX) in 2000. This group consisted of the leaders of the top 5 DivX releasing groups, topsite operators along with rippers and encoders. It was formed because they thought "the new Div/X scene was a bit unmoderated, sloppy and pretty much a free-for-all." iSONEWS published the first standards on April 26. Earlier, on March 16, the database started to carry a DivX section on their website. A week later Betanews noticed the popularity of the then recently released DivX codec throughout IRC channels and asked whether this was a new threat to DVD after the DeCSS utility. The 2001 revision of the standards were organized by different people from iSONEWS. It consisted of 15 groups and signed by