From Oct 11, 2011, videos can only be uploaded by SlideShare PRO users. The upload limits are as follows:

• Silver Pro Account : 10 videos per month, max upload size 500 MB for each video
• Gold Pro Account : 20 videos per month, max upload size 500 MB for each video
• Platinum Pro Account : Unlimited videos per month, max upload size 500 MB for each video

If you want to upload more videos by upgrading to a higher account, please go to the plans page.

Please note:

• The monthly limits work as per calendar months (i.e. January, February, March... )
• There are no time limits for the length of uploaded videos
• Free accounts could upload videos prior to Oct 11, 2011. After this date, their previously uploaded videos will remain, but they cannot upload new videos.

HD support for videos is coming soon.