Content:Files: Difference between revisions

Revision as of 04:31, 18 February 2018

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AniDB stores information (metadata) about digital files that at some point in history has been released on the Internet. This information is an integral part of AniDB and for many users the most important reason for using AniDB. Note that AniDB does not, never has and never will, have any copies of these files. Read the general disclaimer for more information on this.

As a user you do of course not have to use any feature related to files; AniDB offers many features that are completely unrelated to them. There is also the concept of generic files: If you want to add an anime to your MyList, but watched it on TV, have it on DVD or just don't care about registering actual files, see Files:Generic files.

Metadata

Technical information

Information that is of technical character and in most cases indisputable after verified by Avdump2. For track level information, see Content:Files:Video, Content:Files:Audio and Content:Files:Subtitle.

Type

The type of file. Possible values: video file, subtitle file, audio file, other.

Extension

Short name of the container format, see Wikipedia. Possible values: .avi, .mpg, .mpeg, .rm, .rmvb, .asf, .wmv, .mov, .ogm, .mp4, .mkv, .rar, .zip, .ace, .srt, .sub, .ssa, .smi, .idx, .ass, .txt, .swf, .flv, .ts, .ogv, .7z, .mp3, .aac, .ac3, .dts, .flac, .mka, .wav.

Size

The actual size of the file in bytes.

Check/Hash sums

The hash sums are used for verification and identification purposes and includes CRC32, ED2K, MD5, SHA1 and TTH. Size+ED2K is the unique identifier used in AniDB.

Duration

The playback duration in hours:minutes:seconds.

Release information

Information related to the actual release of the file: group, release date, CRC status and version. If the origin of a file is unknown, i.e. no group, then none of these fields have any meaning and should therefore not be set.

Group

AniDB stores the name and short name of the group/person that produced and released a file. The short name is usually found as tags in file names, for example "[AonE]". Please note that not all groups registered in AniDB are listed with the tag they actually use, as AniDB can only have one distinctive tag for each group.

Note	If a file is a joint release, like a file by e.g. ANBU-AonE, that joint group has its own group entry. The file should not be registered under either ANBU or AonE, but to the group that combines them both.

Note	Not all RAW groups are credited. See which RAW groups to credit.

Release date

The date when the group released the file. Usually provided on the group's homepage or on some other release info site like Envirosphere or Baka Updates.

CRC status

Indicates whether the file entry in AniDB represents a perfect copy of the original file or not. You may request a change of the CRC Status if its not checked yet.
See also: Allowed Sources for official CRC

Note	Not all groups provide CRC checksums for their files. This means that this status has no meaning and will have the value "not checked against official CRC".

Read more about file verification if you are unfamiliar with this subject.

Version

Sometimes the group makes mistakes and wants to correct them by releasing a second (third, fourth...) version, usually called v2 (v3, v4, ...). This field is usually based on information in the file name (where no information normally means version 1).

Even if a group releases two files of the same episode it does not mean that the first has to be marked v1 and the second v2. There are other reasons to do something like that other than correcting mistakes like; different source (DTV/DVD), different sub languages, high and low quality versions, etc.

Note	We generally do not consider resolution changes and source changes as version bumps. That being said, you are free to add a file comment, indicating a file is marked as v2 and intended to replace a certain file. For example: Labelled as v2 of [url]https://anidb.net/f2030447[/url]

Other information

Other information that is set manually and in some cases disputable.

Censored

Mainly used for files with pornographic content.

Source

The original source of the content. Possible values are; unknown, camcorder, TV (ie, analog TV), DTV, HDTV, VHS, VCD, SVCD, LD, DVD, HKDVD, HD-DVD, Blu-ray, www.

Quality

This is a very arbitrary field. It depends completely on the eye of the beholder. You should not put too much meaning into it, but rather use it as a general pointer of quality. Possible values are; eyecancer, very low, low, med, high, very high.

Also see: Votes:Animegroups
As a general guideline, refer to the below for a soft-rule convention that is generally followed. The below table can be seen as a "default" or "starting point". If a particular file has sub-par quality, mark down its qualid field relative to the default, as appropriate. Also note, the historical context of the anime should be kept in mind. For example. if an anime is released in the 70s, and the highest quality medium of release is LD, it may be appropriate to use the higher range of tehbump the quality field up a level for the LD release, relative to the defaults below; the goal is to use the qualid field as a differentiator, to identify the LD release as the definitive release relative to other options that may be available (TV, VHS, etc).
Note: All items highlighted in red below are upscales by definition, as the specifications of the mentioned media do not reach into those resolution ranges. Items in bold signify the more common qualid (if applicable), where more than 1 is specified.
Ultimately, use some discretion and common sense.

Source	< 480p (or equivalent)	480p or equivalents (440x486 (NTSC), 520x576 (PAL, SECAM), etc)	720p	1080p
camcorder	very low, low	low	low, medium	medium, high, very high
TV (ie, analog TV)	very low, low	low, medium	low, medium	medium
VHS	very low, low	low, medium	low, medium	medium
LD	low, medium	medium, high	high	high
VCD	low, medium	medium, high	medium, high	medium, high
SVCD	low, medium	medium, high	medium, high	medium, high
HKDVD	low, medium	medium, high	medium, high	medium, high
DTV	low, medium	medium, high	medium, high	medium, high
DVD	low, medium	medium, high, very high	high, very high	high, very high
www	low, medium	medium	high	very high
HDTV	low, medium	medium	high	very high
HD-DVD	medium	high	very high	very high
Blu-ray	medium	high	very high	very high
unknown	Use discretion	Use discretion	Use discretion	Use discretion

Description

Additional useful information about the file. See Content:Filecomments.

Statistics

The description is missing or severely incomplete.

If you can, please help by explaining it.

Registering new files

What is accepted?

Private / Personal files

The general rule is that file entries in AniDB are supposed to be useful for a larger group of users. Adding private files is therefore not allowed.

What is a private / personal file?

A private or personal file is a file that you create for yourself. It is a file that is not released publicly. For example, if you reencode a file for your own use, or you remux a bunch of files together to create a new file, these are private files as they are only available for your personal consumption.

Personal files are NOT to be added to AniDB.

Corruption

An entry for a corrupted file may still be useful for others as long as it's likely that more people have the exact same corrupted file as you have. (For example if one source sent the corrupted version to many people.)

If - and only if - this is the case, you can add the file normally to AniDB, selecting CRC does not match official source and/or Quality: Corrupted if there are visible/audible errors in the file.

Warning

If the corruption is based on some hard- or software-problem on your side, or if you manually edited the file, you should not add them to AniDB as they serve no purpose for other users.

Don't worry - you can still list such files properly in your MyList. For example: You have a corrupted version of group X's release. Navigate to the corresponding episode where the regular, uncorrupted version of group X's release is listed and click on the "add to mylist" icon on the far right. On the next page, you can select the "Type: corrupted version/invalid CRC" so that your MyList entries properly indicate which version you have.

If there's no CRC-valid version of group X added for the release you have, consider adding the episodes' generic files to your list instead.

Remuxed files

They have to be wide-spread (see above); private files are not allowed.
Do not mark them with the original group. Use no group or make your own group, adding the original group's name the subtitles/video are taken from to the file's description.
Adding such files is generally frown upon unless some value was actually added in the remuxing process.

How to add

Important

Please consult Tutorial:How_to_Add_Files_for_Dummies! if this is your first time adding files.

Since files in AniDB are tied with an actual episode, the place where you add files is at the far right of each episode entry. Click the "add file" icon that looks like this: , and it will take you to a new page where you can fill in the information about the file you want to add. For video files, the most important fields are: ED2K-link, CRC/CRC Status, Release group and Audio and Subtitle languages.

Alternatively you can use the mass add file page which is linked at the bottom of every anime page (massf).

Furthermore, it's strongly suggested (we basically demand it) to use Avdump2 to parse the file before or after adding it to AniDB to get accurate metadata and to mark the file as verified (which causes some data of the file to stay locked and non-creq'able).