AVI Preview
AVI Preview was a lightweight utility that played incomplete or partially downloaded AVI video files. During the era of slow internet connections and peer-to-peer file sharing, it let you check the content of a video before the download finished - verifying you were getting the right file without waiting hours for completion.
What it did
The program rebuilt the AVI index on the fly, allowing playback of files that were still downloading or had been interrupted. Standard media players refused to open such files because the index at the end of the AVI container was missing. AVI Preview worked around this limitation and played whatever data was available.
It also handled corrupted AVI files where the index had been damaged. The tool supported AVI, MPEG, DivX, XviD, and VideoCD formats. At under 1 MB, it required no installation and ran as a standalone executable.
Advantages
- Played incomplete downloads that other players refused to open
- Tiny size, no installation required
- Repaired broken AVI indexes automatically
- Completely free
Drawbacks
- Only worked with AVI-based formats, not MP4 or MKV
- Development stopped in early 2000s (alpha version 0.26)
- Irrelevant now that streaming replaced file downloads
- VLC can play incomplete files natively today
Who it was for
AVI Preview solved a specific problem from the dial-up and early broadband era - checking if a multi-hour download from eMule or Kazaa was actually the video you wanted. With streaming services and fast internet connections, the problem it solved no longer exists. VLC handles incomplete files without special tools.
Frequently Asked Questions
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Features & How-To Guide
| # | Feature | How to use |
|---|---|---|
| 1 | Incomplete video download preview | File › Open › Select incomplete AVI file › Playback will start automatically. |
| 2 | Corrupted AVI index repair | File › Open › Program automatically rebuilds the AVI index enabling playback. |
| 3 | AVI and MPEG file playback | File › Open › Select file AVI/MPG/MPEG › Play. |
| 4 | DivX and XviD file playback | File › Open › Select DivX/XviD file › Playback using installed codecs. |
| 5 | Files preview from P2P network | Point to eMule/Kazaa downloads folder › Open partially downloaded file › Preview contents. |
| 6 | Quick seek in incomplete files | Use the timeline slider › Scroll to available portions of the downloaded file. |
| 7 | VideoCD file playback | File › Open › Select DAT file from VideoCD › Playback. |
| 8 | Transfer without installation | Copy exe file to USB drive or to a folder › Run directly without installation. |
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