to decide upon the rules. A common understanding amongst all was that material from non-physical media can easily be of doubtful origin of source and hence of questionable quality. The rules consider only physical media as a valid source and they must be followed very strictly. A lot of releases are being nuked for various cosmetic flaws. Early 2016, anonymous sceners voiced a concern that nukers lack technical understanding to nuke improperly ripped vinyl sources and showed examples of how the ruleset gets twisted or misinterpreted for minor issues. The release got nuked within the hour after pre by ZoNeNET with just invalid.proper as reason. In June later that year, 4 years after version 2.0, a new ruleset was made to address misinterpretations in the wording and to update some rules. In response to version 3 of the rules, a scene notice called the rules invalid because it was not created by leading groups in the section or a council. It also pointed out that its block on WEB and PROMO releases causes a void due to the digital only distribution of many originals. The group CUSTODES mentioned in their farewell message that the FLAC ruleset isn't professional enough to archive music in the best quality possible. Software standards Applications Application releases are usually split in two different categories, 0-day and ISO apps. Categories originating from or still being put into 0-day are for example PDA, EBOOK or XXX-IMAGESET. 0-day (pronounced zero day) refers to any copyrighted work that has been released the same day as the original product, or sometimes even before. It is considered a mark of skill among warez distro groups to crack and distribute a program on the same day of its commercial release. 0-day applications are usually 150 MB or smaller, but can be 5 GB or larger as long as they are not CD/DVD images. The release format allows almost anything in 0-day section, but often 0day releases are cracks or keygens for different applications or small games with size varying from 1–50 MB. Sometimes e-books, imagesets, fonts or mobile software are released as 0-day. Executable programs such as keygens and cracks are often compressed with the open source UPX packer. LineZer0 indicated in the nfo file of their 20,000th release that they will change their packing ways to RAR/SFV and put the old ZIP/RAR/DIZ packaging to rest by the first of April 2012.