Every carrier is different, and it is recommended that mobile users read up on their phone’s MMS capabilities and the carrier’s file size. It is also important to note down how much extra you will be charged if you exceed this limit.The 100kb was apparently designed for pictures, not video, meaning users won’t be your best target market if you want to get a viral video to the masses.
An MMS cannot be fragmented. This means it cannot be broken up into two messages and collated on the receiver’s phone as a single message. When you type an SMS message that exceeds 160 characters, your phone will send the message in 2 separate parts, and the receiver’s phone will then put the two together to make it look like a single message. MMS does not have this functionality! A video cannot be broken up and sent across a network.
The investigation of sending of an MMS is event-based, not data-based. Therefore, MMS customers are not charged for the GPRS component utilized during the carriage of their MMS message through the network. As a user, you are billed on the event, not on the size of the video. It doesn’t matter whether the video is 230kb or 295kb, the cost to the user is still the same. For this reason, producers of mobile videos might as well get as close to 295kb as possible. The only benefit to the user is that smaller videos will reach their phone quicker, but the time difference is not worth worrying about in today’s mobile world.