--- title: "Creative Specifications (CTV)" slug: "creative-specifications-ctv" tags: ["Creatives", "CTV", "Specifications"] updated: 2024-05-20T19:50:26Z published: 2024-05-20T19:50:26Z canonical: "help.quantcast.com/creative-specifications-ctv" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.quantcast.com/llms.txt > Use this file to discover all available pages before exploring further. # Creative Specifications (CTV) ## **Creative Specifications** The Specifications for CTV Creatives on the Quantcast Platform are as follows: ### **Size Ratio** 16:9 1920x1080 min ### **Length** Fifteen (15) sec and Thirty (30) sec lengths are recommended. We advise running both:15 and:30 sec CTV video ads for the maximum scale and best results. If you don’t have the resources for both creative lengths. Then contact Quantcast Creative Services for help - > :15 sec will run on :15 sec ad slots - < :30 sec - limited inventory available. Please reach out to Quantcast Support for more details. ### **File Format** - 3rd party ad serving tags - VAST 2.0/3.0/4.0 - VPAID wrappers are not supported ### **Video Hosted** - .mp4 or .mov are supported - FLV and WebM files are not supported ### **Max File Size** - 10 GB max for third-party creative tag sheets - 1 GB max for Quantcast-hosted video creatives ### **Bit Rates** - 18,000 kbps - 30000 kbps ### **Frame Rate** - Must be constant at 24 fps, 25 fps (PAL countries), or 30 fps (NTSC countries) ### **Audio Sample Rate** - 48 kHz