Video MSU Deblocking VirtualDub plugin   
http://www.compression.ru

Filter is intended for recovering quality of video ripped from DVD (for exmaple, when it contains 4 hours of video data), VideoCD or after decompressing by H.261, H.263, DivX 3, DivX 4, XviD. Filter automatically determines the blockiness's strength on the frame and in the concrete part of it, preserving the maximum of details. Thus, filter will process marginally when on scenes with slow motion, while it will smooth very hard in the case of fast motion in the same film. The main advantige of the filter is that it raise the integral quality in the most widespread PSNR metric in comparison with original film. That is, a film after decompression in comparison with original achieves the lower quality than a film after decompression and deblocking. (But for all that the original film is not used nowise, only decompressed data is used.)

MSU Denoising VirtualDub Video plugin   
http://www.compression.ru

Free high-quality video denoiser plugin for VirtualDub. Easy to use. The filter is designed for noisy video stream processing, video quality improvement, or video preprocessing, e.g. for preprocessing before compression or deinterlacing. Allows flexible denoising level setup in temporal and spatial dimensions. The filter suppresses noise in both spatial and temporal domains. For each type of denoising different properties could be set in the propery box. With specific combinations, spatial-only or temporal-only denoising could be enabled.

MSU StegoVideo   
http://www.compression.ru

Free program for hiding information in video. Data that you hide can be recovered even from compressed video, or if the video was compressed again by another codec! We smartly change video with understanding how codecs works, introducing small amounts of noise. You can hide not so big files, but for cipher communication or video secret marking it is enough! You can manage redundancy of information in film - if you want to compress video with low bitrate, you should increase redundancy, and vice versa.

EnhanceMovie   
http://movavi.com

EnhanceMovie is a handy, inexpensive, brainlessly-simple software that automatically cures any digital video from common problems - colors off balance, blurred picture, interlacing video or the "too dark" syndrome, among other things. The program has two major advantages. The first one comes in the form of multiple auto-filters that automatically "polish" video with one button click. Importantly, program users don't need to know anything about video editing or remastering in order to dramatically improve quality of their digital videos. EnhanceMovie does it all seamlessly, without user intervention. The second advantage is an option to select a part of the video (interval) that needs to be edited, and apply necessary filters only to that section. In addition to autofilters, the program offers multiple professional filters, such as DeNoise, Auto White Balance, Deblocking (for working with analog videos) and many others. Plus, EnhanceMovie has several artistic filters that will make home videos look very unusual. These are Mosaic, Posteraise, Grayscale, Invert, and they can be used to make home videos look like an old 30s movie or very futuristic. Key features: - Auto Filters: Magic Enhance, Auto Contrast, Auto Saturation, Auto White Balance. - Effective video filters: Denoise, Deiinterlace, Deblocking, Brightness/Contrast, Sharpen, Blur, Color Temperature, Hue/Saturation, Gamma, Color Balance, Chroma Balance. - Artistic video effeccts: Mosaic, Add Noise, Posterize, Diffuse, Grayscale, Invert - AVI, MPEG, VOB, MP4, MOV, WMV formats supported - Filters and effects can be applied to specified fragments of video - Play video in the Original, Filtered and Split Modes. - Drag-and-Drop interface, very easy to learn and use.

Elecard MPEG Player   
http://www.elecard.com

Elecard MPEG Player is DirectShow® compliant software providing high resolution, full quality decoding of MPEG-1, MPEG-2, AVC/H.264*, MPEG-4 SP/ASP. It supports DivX, 3GP, ripped VOB's, DVB, SVCD, Transport Streams. Audio supports AAC, AC3, MP2, MP3 inputs and SPDIF output. With its decoder optimized for the most efficient CPU usage, Elecard MPEG Player is a great choice for those who strive for high performance and robustness using low power hardware. Reliable support of a number of common multimedia formats such as AVI, WAV, MOV, and others greatly benefits all Elecard MPEG Player consumers by bringing all the richness and excitement of HDTV into their homes. Elecard MPEG2 Video Decoder incorporated in Player is Windows XP Media Center Edition compatible. Features: fast forward/backward playback, next/previous frame, grab frame, play list, trim file, playback DivX files, brightness control, playlist merging, playlist combining, graph preview, deinterlace field interpolation, deinterlace vertical filter, decoding quarter resolution for preview mode, double precision IDCT. Note: AVC/H.264 is supported when Elecard AVC plugin for MPEG Player is installed.