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What is FLI?

FLI Animation is Autodesk Animator's animation format, a legacy 2D animated format from the DOS era for game graphics.

What is AVI?

AVI (Audio Video Interleave) is a legacy multimedia container format introduced by Microsoft in 1992.

When Should You Use FLI vs AVI?

Use FLI When...

Reach for FLI when your priority is retro game animation, dos animator files — its uncompromising quality ensures every detail is preserved.

Use AVI When...

Reach for AVI when your priority is legacy video, windows applications — its efficient compression makes sharing fast and storage minimal.

FLI vs AVI: Key Differences

  • •FLI and AVI diverge on compression: lossless compression for the source, lossy compression for the target.
  • •Moving from FLI (lossy) to AVI (lossy) means the output file will be significantly smaller — but at the cost of some visual fidelity.
  • •How transparency is handled: AVI does not support alpha channels — transparent areas in the source will become opaque.
  • •FLI files are typically Small for short animations while AVI files range Very large for uncompressed video
  • •Primary audience: FLI is built for retro game animation, dos animator files scenarios, while AVI focuses on legacy video, windows applications — pick the format that matches your output requirement.

Advantages of FLI

  • ✓FLI uses lossless compression tailored for Retro game animation, DOS Animator files.
  • ✓FLI is supported natively on virtually every device, browser, and operating system.
  • ✓FLI files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓FLI integrates seamlessly with all major creative tools and workflows.

Advantages of AVI

  • ✓The lossy nature of AVI means file sizes stay reasonable while handling Legacy video, Windows applications efficiently.
  • ✓From mobile devices to enterprise servers, AVI is recognized and supported everywhere.
  • ✓Storage and bandwidth costs drop significantly when using AVI thanks to its efficient compression.
  • ✓AVI is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for FLI to AVI Conversion

  • Video archiving
  • Broadcast production
  • Video game cutscenes
  • Product demonstrations
  • Webinar recordings
  • Animated explainers

Industry Applications

Broadcast MediaVideo SurveillanceGamingLive EventsVideo ConferencingDigital Signage

Best Practices for FLI to AVI Conversion

  • →For FLI to AVI: encode at the target platform's native resolution — upscaling or downscaling adds unnecessary artifacts
  • →Test a short clip before converting the entire FLI file — this confirms AVI settings produce acceptable quality
  • →AVI is widely supported but choose bitrate carefully to balance quality and file size
  • →Use constant bitrate (CBR) for streaming delivery and variable bitrate (VBR) for archival storage
  • →Keep the original file in case you need to re-encode with different settings
  • →Check audio sync after conversion — container changes can sometimes cause drift

Related Article

Video Compression Guide: Reduce File Size Without Losing Quality

Learn more about FLI and AVI formats in our detailed guide.

Troubleshooting FLI to AVI Conversion

  • !AVI won't play on target device → check codec compatibility (H.264 has broadest support)
  • !Audio out of sync after FLI to AVI conversion → try re-muxing with a different container format
  • !AVI quality is too low → increase the bitrate; for 1080p video, 8-15 Mbps is recommended
  • !File size increased converting FLI to AVI → lossless or higher-bitrate outputs naturally produce larger files

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About FLI and AVI

FLI

FLI (FLI animations) - FLI Animation, Autodesk Animator FLI animation format. Best for retro game animation, dos animator files.

AVI

AVI (AVI videos) - Audio Video Interleave, legacy video format. Ideal for legacy video, windows applications.

Format Comparison

CompressionLossless → Lossy
TransparencyN/A
Use CaseConvert from retro game animation, dos animator files to legacy video, windows applications
File Size~Very large for uncompressed video after conversion

FAQs

Is converting FLI to AVI free?

Yes, GoConvertFile offers free conversion of FLI to AVI for files up to 100MB. No registration required.

How long does it take to convert FLI to AVI?

Most FLI to AVI conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is AVI best used for?

AVI is ideal for legacy video, windows applications. Audio Video Interleave, legacy video format

Does converting FLI to AVI lose quality?

Yes, converting FLI to AVI uses lossy compression, which reduces file size by discarding some visual data. Set quality to 85-95% for a good balance of quality and file size.

What file size should I expect after converting FLI to AVI?

AVI files are typically 50-80% smaller than FLI files because AVI uses efficient lossy compression. The exact reduction depends on quality settings.

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Tune output for this video conversion
80%
Smaller fileBetter quality