If you’ve ever been deep into a Premiere Pro project and suddenly experienced choppy playback, frozen frames, or the dreaded "audio buzzing but video lagging" scenario, you’ve likely encountered a corrupted or missing index file .
Have a Premiere Pro indexing horror story? Drop it in the comments. index of premiere pro
✅ Don't let indices clog your C: drive. Move the cache folder to a fast scratch disk. If you’ve ever been deep into a Premiere
Most editors ignore indices until something breaks. But understanding what they are can save you hours of frustration. In simple terms, an index is a temporary cache file (usually with a .cfa or .pek extension) that Premiere Pro creates to read your media faster. ✅ Don't let indices clog your C: drive
Use HandBrake or Shutter Encoder to convert the clip to Constant Frame Rate (CFR) before importing. Premiere can index CFR files perfectly. Best Practices to Keep Your Index Healthy ✅ Do this every 2-3 weeks: Edit > Preferences > Media Cache > Delete — also check "Delete unused media cache files" (anything older than 30 days is safe).
Delete your media cache. Go to Edit > Preferences > Media Cache and hit Delete . Then restart Premiere. It will rebuild fresh indices. 3. "File Has an Unsupported Compression Type" Sometimes Premiere refuses to index a VFR (Variable Frame Rate) file — typically screen recordings from OBS, Zoom, or iPhones. No index means no smooth scrubbing.