A .D2V file serves as a structural reference file rather than video content, built by DGIndex to mark frame positions and technical info across VOB or MPG/TS sources so AviSynth or similar tools can process video accurately with filters like deinterlacing or sharpening before encoding, but it becomes invalid if source files change paths, with its presence near DVD folders or scripted encode setups revealing its role.

A D2V "index file" functions as a frame-accurate lookup table where DGIndex records byte positions, frame boundaries, and interpretation data, allowing tools like AviSynth to request exact frames in order without struggling through raw GOP structures, and since it only references the real VOB/MPG/TS files, altering those file locations causes the D2V to stop working.

If you cherished this article and you would like to receive more info relating to D2V format generously visit our page. Because it’s a recipe tied to specific ingredients, a D2V can fail if its source files move—renaming or relocating VOB/MPG/TS segments breaks the lookup table, since the index stores only pointers, not video; the D2V itself is a frame-by-frame map that DGIndex/DVD2AVI builds by scanning MPEG-2 sources and listing which segments form the timeline, how the stream spans multiple VOBs, and where frames sit inside GOP structures, along with flags for frame rate, aspect, and interlacing/cadence, allowing AviSynth to jump straight to correct byte ranges for stable, frame-accurate filtering and encoding, making the D2V the clean gateway into processing workflows.

Using a D2V-powered script lets you apply image operations such as cropping, resizing, noise removal, sharpening, color/levels tuning, subtitle additions, and IVTC/deinterlacing, before sending the result to x264/x265 to produce final files, with the D2V ensuring accurate frame retrieval; a .D2V cannot be played because it stores no media streams, only instructions and frame pointers referencing VOB/MPG/TS sources, meaning VLC or WMP have nothing to decode, while DGIndex/AviSynth can read the map and pull the real frames.

A .D2V file works as a technical bridge for DVD/MPEG-2 processing, letting DGIndex/DVD2AVI codify frame layout, aspect flags, and interlace/telecine cues so AviSynth can request frames reliably for cleanup tasks—crop, resize, denoise, sharpen, adjust levels, add subtitles, deinterlace, IVTC—and then encode through x264/x265, with its purpose being accuracy across multiple VOB segments.

A .D2V fails post-move because its role is to point to exact byte locations inside specific VOB/MPG/TS files, relying on stored filenames and paths that DGIndex captured during indexing; change those inputs and the index can no longer resolve frames, producing errors or blank video, making it essential to keep the D2V with its sources or re-index if the file layout changes.