Best Practices

Preferred Uploading Environment

The video player in CLAS is compatible with all major browsers (Firefox, Chrome, IE, Safari) on all major desktop (Mac, Windows) and mobile (iOS, Android, Blackberry) hardware platforms. Google Chrome is the recommended browser for CLAS.


For the fastest upload, we recommend uploading from UBC Campus Wi-Fi or Ethernet connection.

Preferred Video Resolution

Preferred resolution:

  • For instances requiring self-submission from users (ex. Music Admission), or uploading from abroad: 360p (YouTube’s default) or 480p.
  • For uploading from a strong internet connection, such as UBC Campus Wi-Fi or Ethernet Connection: 480p or 720p.
In production, adequate lighting and camera focus are far more important than the capture resolution in yielding good visuals. A slightly lower resolution video with sufficient lighting will produce a good quality video that requires less uploading time.

Preferred Video Format

The following video and audio formats are supported by CLAS to date: 3GP, AVI, FLAC, FLV, M4V, MKV, MOV, MP3, MP4, MPEG, MPG, OGG, WAV, WEBM, WMA, WMV…
MP4 is recommended for videos.

Preferred Duration

CLAS allows for up to 2GB per upload or recording (roughly 1.5h video at 480p). A video of that size would require an extended uploading time, so we recommend sectioning the video into 2 or 3 videos of 20-45 minutes each to reduce upload time.

Common Issues

  • It is possible for the sleep function on your uploading device to interrupt the uploading process, so remember to turn it off beforehand. A fast internet connection is very important for a smooth upload.
  • Any document files with special symbols in their names cannot be shared to playlists, groups, etc. It is recommended for users to avoid using special symbols when naming files. To resolve the issue, please rename the files and upload them to CLAS again.
    • Examples of special symbols: &, @, #, $, etc.
  • If the Content Map, Menu Bar, or other items disappear in CLAS. Clear your web browser’s cache and refresh the page. This should restore the items.

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