SCC vs SRT: Which Caption Format Should You Use?
SCC is a broadcast-grade caption format encoding CEA-608 data. SRT is a simple text-based subtitle format. They serve completely different workflows.
Quick Answer
Use SRT for online subtitles — YouTube, websites, editors, sharing. Use SCC only when your workflow specifically requires broadcast-grade closed captions in CEA-608 format for television delivery.
Use SRT if…
- Publishing online (YouTube, websites, apps)
- Working with video editing software
- Distributing subtitle files for download
- Any non-broadcast web workflow
Use SCC if…
- Delivering to a broadcaster requiring CEA-608 captions
- YouTube delivery with SCC specified in platform specs
- Archiving legacy broadcast caption data
- A post-production facility requires SCC output
What Is an SCC File?
SCC (Scenarist Closed Caption) stores CEA-608 caption data as hexadecimal values. Unlike SRT’s human-readable text, SCC looks like this:
These hex values encode CEA-608 caption data used in analog and digital TV broadcast. SCC files require specialized software to create or edit — they are not human-readable.
SCC vs SRT Comparison Table
| Feature | SRT .srt | SCC .scc |
|---|---|---|
| Format type | Human-readable plain text | Hex-encoded CEA-608 data |
| Intended for | Online video, editors | Broadcast TV, CEA-608 delivery |
| YouTube support | ✅ | ✅ (broadcast caption format) |
| Video editors | ✅ Universal | Specialized broadcast tools only |
| Human-readable | ✅ | ❌ |
| Edit by hand | ✅ | ❌ Requires software |
| CEA-608 caption data | ❌ | ✅ |
| TV broadcast delivery | Not typical | ✅ |
| Works on websites | ✅ (as VTT) | ❌ |
Converting SCC to SRT
SCC → SRT requires decoding hex-encoded CEA-608 data into readable text. Tools like ccextractor (open source), MacCaption, or Telestream Vantage can decode SCC. After conversion, use the Fix SRT tool to clean up numbering and timestamps.
Frequently Asked Questions
Why is SCC so hard to read?
SCC stores caption data as hexadecimal CEA-608 control codes — not human-readable text. It was designed for broadcast transmission, not editing.
Can I convert SCC to SRT?
Yes, using ccextractor (open source), MacCaption, or Telestream Vantage. After conversion, use Fix SRT to clean up.
Does SCC work on websites?
No. For web video use VTT (HTML5 <track>) or SRT. Convert SCC → SRT → VTT for web delivery.