Why Videos Are Limited to 15 Minutes and What to Do Instead

Open the converter with a two-hour recording and you will meet a polite refusal: the video is longer than 15 minutes. It is a deliberate rule, set at 900 seconds, and understanding the thinking behind it helps you work with it rather than against it.

The reasons behind the cap

Fair sharing of capacity. Each conversion uses processing time, memory and disk space on the server. Many people use the service at once, and a few very long jobs could crowd out everyone else. Capping duration keeps queues short.

Predictable jobs. A 15-minute video at 320 kbps makes a 36 MB file. That is small enough to process in a short time and to delete after an hour. A three-hour file is twelve times larger, with matching failure risks.

Purpose. The tool is meant for clips, talks, tracks and episodes you own, or for material with open licenses. Short-form content fits that profile. Longer broadcasts and full albums raise more rights questions, since they often belong to someone else.

What the limit means in numbers

• Maximum length: 900 seconds.
• Largest file size at 128 kbps: about 14.4 MB.
• Largest at 192 kbps: about 21.6 MB.
• Largest at 320 kbps: about 36 MB.

Combined with the allowance of 10 conversions per IP per hour, that sets a ceiling of roughly 150 minutes of audio per hour, per address.

Options for your own longer recordings

You own the recording, but it runs 50 minutes. Several options:

1. Upload it in chapters. Publish a series of parts, each under 15 minutes, with consistent titles such as Part 1 of 4. This also tends to improve viewer retention.
2. Keep the source file. If you have the original recording on disk, use an audio editor locally to export an MP3 of any length.
3. Download from your hosting platform. Podcast hosts usually provide the original episode file.
4. Create a short companion version. A trailer, highlight reel or summary under 15 minutes can be converted here.

How to split cleanly

When cutting a long recording into parts, split at natural boundaries: topic changes, questions, or pauses. Overlap a few seconds if you want listeners to pick up the thread, and include a quick recap line at the start of each part. Name them consistently so players sort them in order. Our articles on audio editing and ID3 tags in the blog give details.

What about duration shown in the preview?

When you paste a link, the preview card shows the length. Videos over 15 minutes are flagged immediately, and search results over the limit are shown as unavailable. This saves you from waiting only to find out afterwards.

Handling Creative Commons material

If a CC-licensed lecture or concert is longer than 15 minutes, the limit still applies. Instead of looking for a workaround, check whether the creator offers an audio-only download on their own site, which is the cleaner route and often a better file.

Will the limit change?

Limits are operational settings and may change as capacity changes. Plan around what is in force today, and check the converter page and terms for current numbers.

Making the most of 15 minutes

• Pick 128 kbps for speech to keep files light.
• Name and tag files right after downloading.
• Download within the hour, as files are deleted then.
• Space out conversions across the hour so you do not hit the hourly allowance.

Rights note

Use the service only for content whose rights you hold, or that is Creative Commons licensed or royalty-free and used within its terms. Long or short, permission is the deciding factor.