Nobody can say that they have never seen or downloaded pirated movies, actually one of the Internet's main use is to watch pirated movies. In recent times the pirated Version of the movies are available on the Internet on the same day of the movie release. But before downloading pirated movies you have to check release format. If you don't have the knowledge of the pirated movie formats you would be left with a bad copy of the film when other better prints were available for download. So i thought about writing about the popular pirated movie formats. Mostly the information is taken from wikipedia but i have also included my own opinions and experiences of the formats so if you want you can take a look at the wikipedia article. So here are the different formats arranged mostly in the sequence of their releases time.
Type:- CAM
Label :- CAMRip or CAM
Mostly CAM version of the movies appear online on the same day of the movie release. CAM copies of the movies are made by recording the movie using a camcorder in the theaters. Due to this, the print quality depends upon the quality of the camcorder. The sound quality too is not that good as it is recorded by the camcorder.
Note:- If you are in a real hurry to watch the movie and the only available version is a CAM, then try to download the movie from good site uploaded by popular warez groups like FXG, aXXo, Devise etc. If downloading from torrent please read the comments, you can get a fairly good idea of the print by reading the comments.
Type:- Telesync
Label:- TS or PreDVD
TS versions are CAM versions with a better audio from a secondary source.
PreDVD are rips of pirated DVD sold on the roadside. The actually are CAM versions, maybe of higher quality.
Note:- If you have waited for a TS and PreDVD copy i would suggest to wait a couple of days more for better quality prints.
Type:- Pay-Per-View Rip
Label:- PPVRip
These are rips of the moveis from the Pay per view sources .The are good quality prints and with good sound. Recently this prints have become very common.
Type:- Screener
Label :- DVDScr
These are the rips of the DVD and BR of the movie sent to the reviewers and other peoples for the purpose of reviewing the movie. Mostly the copies have watermarks or message. Some times some of the film sequences are in Black and White.
Type:- Region 5
Label:- R5
R5 are rip of the DVD of the movies available in the region 5 which consist of the Indian subcontinent, Africa, North Korea, Russia and Mongolia.
Note:- It is suggested that the audio quality of the R5 prints is not that good because the audio is synced later from some secondary source. But my experience with R5 rips has been good and i was not able to find many difference between the audio, so i would suggest its OK to download R5 rips.
Type:- HDTV or DS rip
Label:- HDTV, TVrip or DTHrip
This are rips captured from the analog or DTH sources.
Type:- DVD and Blu-Ray rips
Label:- DVDrip and BDrips
These are the best quality rips as the are ripped from the official DVD and Blu-Rays of the movie.
Note:- In recent times the DVD and Blu-Rays appear online very quickly so if you are not in a great hurry to see the movie, i would suggest to wait for this version of the movie.
There are some more version but his are the most popular and common and i would suggest you to stick with this versions.
经常会和朋友们分享最新上架的电影，在分享电影的时候，就会涉及到一些常见的视频专业名词，一般不容易理解，且很难却分什么样的影片质量好，什么样的影片质量差。下面就常见的TS、TC、CAM、SCR、DVDRip、DVDScr、VHSRip、TVRip、DivXRe-Enc、RMVB、SUBBED给予详细解释！
CAM
通常是用数码摄像机从电影院盗录。有时会使用小三角架，但大多数时候不可能使用，所以摄像机会抖动。同时由于放摄像机的座位并非总是空的，使得有时拍摄不是水平的。如果后期剪裁很好，这很难看出，除非屏幕下方有字幕。由于声音是从摄像机自带的话筒录制，所以经常会录到观众的笑声等声音，尤其是喜剧片。因为这些因素，图象和声音质量通常都很差。但有时很幸运电影院相当空，这样会录到好一些的声音。
TS （TELESYNC）
除了使用外置的音源（一般是影院座椅上为听力不好的人设的耳机孔），TELESYSNC(TS) 和CAM的标准是相同的。这个直接的音源并不能保证是好的音源，这是它因为受到很多背景噪音的干扰。很多时候TS是在空的影院录制，或是用专业摄像机在投影室录制，所以图象质量可能比CAM好。质量的起伏可能很大，在下载前最好查看SAMPLE。很大比例的TS是从CAM错误标记成。
TC （TELECINE）
使用电视电影机从胶片直接数字拷贝，其图象和声音质量应该很好。但由于使用的设备和费用很高，TC很少见。通常会使用正确的高宽比，但有时也有4:3的TC。去年的侏罗纪公园III是一个很好的例子。不应将TC和TimeCode(时间码)混淆，时间码是一个在屏幕上可见的计数器。
SCR（SCREENER）
SCREENER(SCR)是在电影发行VHS录象带之前送到录象出租店及其他地方用做促销目的。SCREENER使用VHS录象带，通常使用4:3（全屏）的高宽比，但有时也会有LETTERBOXED(1.85:1宽银幕) SCREENER. 主要的缺点是有“TICKER”（在屏幕下方滚动的消息，包含版权和反盗版电话号码）。同时，如果录象带包含任何序列号或可以导致查出录象带来源的记号，这些记号必须被遮掉，通常使用一个黑斑遮住上述部位。有时这些记号只出现几秒钟，有时也可能不幸在怎个电影中出现，而且有时会很大。根据使用的设备，SCREENER的质量可能是极好，如果是从原版拷贝；也可能很差，如果是从翻录的拷贝录制，同时又使用很烂的捕捉设备和录象机。大多数的SCREENER被转制成VCD，现在也出现了SVCD；有些看起来比另一些好。
DVDscr（DVD-SCREENER）
DVD-SCREENER(DVDscr)和SCREENER相似，但是从DVD转制。通常是1.85:1宽银幕，但是不包括零售版会有的花絮。TICKER经常不在黑边里，所以会影响观看。如果转制者稍有技术，DVDScr应该很好。通常被转制成SVCD或DivX/XviD。
DVDRip
DVDRip是从最终版的DVD转制。如果可能，应该是使用预售版（比如，星球大战2）。质量应该很好。通常被发布成SVCD或DivX/XviD
VHSRip
VHSRip是从零售版VHS录象带转制，主要是滑冰/体育内容和XXX发布。
TVRip
从电视（最好是从数码有线电视/卫星电视捕捉）转制的电视剧，或接收由卫星提前几天向电视网传送的预播节目（不包含加密但有时有雪花）。有些节目，比如WWF RAW IS WAR包含多余的部分；”DARK MATCHES”和CAMERA/COMMENTARY测试被包含在TVRip里。PDTV是从PCI数码电视卡捕捉，通常效果最好；破解组织倾向于使用SVCD来发布。VCD/SVCD/DivX/XviD rips也都被用于发布TVRip。
DivXRe-Enc
DivXRe-Enc是从原始VCD发布用DivX编码成的小一些的文件。通常可在文件共享网络找到。它们通常以Film.Name.Group(1of2)等形式命名。常见的发布组织有SMR和TND。这些版本通常不值得下载，除非你不清楚某部电影，只想要200MB的版本。一般应避免。
SUBBED
对于VCD发布而言，SUBBED通常表示字幕被压进了电影。它们通常是马来语/中文/泰文等，有时有两种语言。它们可能占据了很大一部分屏幕。SVCD支持外挂字幕，所以DVDRip用外挂字幕发布。这些信息可以在NFO文件中找到。
RMVB
在大部分的BT网站上，我们见的更多的是rmvb格式的，一般在文件名上都会出现***-rmvb,例如：DVDRip-RMVB,这个表示电影文件是由DVDRip版本压缩成RMVB的。这种格式占用容量一般小得多，并且内嵌字幕，但是效果要降低的很多。
另，关于电影的其他参数：
PROPER:完整版
UNARATE:未删节
R_RATEE:有删节
WS:表示宽银幕
FS:表示全屏幕
WITH EXTRAS:影片带花絮
References:
http://hacking-for-beginners.blogspot.com/2011/07/pirated-movie-release-formats.html
http://www.dyxiazai.com/movie-quality-distinguish
