Video banners uploaden naar Google Double Click

Hi everyone, 

When I try to upload my HTML5 video banner into the Validator I get a flie_type_invalid both for .mp4 and for .webm. Are there any video formats allowed? Or a workaround for this issue?

Thanks in advance!

Cristina

The creative contains a file type that isn’t supported by DCM. Supported file types are HTML, HTM, JS, CSS, JPG, JPEG, GIF, PNG, JSON, XML, and SVG. To resolve this issue, contact the creative developer and request that any other file types are removed or replaced.