# Assess source formats and packaging
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Consult the following table for information about how to assess the source formats and packaging. Read across each row.


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| Information to obtain | Verify the following | 
| --- | --- | 
| Number of sources that the content provider can provide. | If you plan to implement a [resiliency feature](plan-redundancy.md), make sure that your content provider can deliver the required inputs:[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/medialive/latest/ug/uss-obtain-info.html) | 
| Delivery formats and protocolsThe type of MediaLive input that applies to the format you identify | Find out what format and protocol the upstream system supports for delivery. Make sure that this format is listed in the table in [Input types, protocols, and upstream systems](inputs-supported-formats.md). [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/medialive/latest/ug/uss-obtain-info.html)Note that you don't need to verify this information for content delivered over CDI or content delivered from an AWS Elemental Link. MediaLive can always handle these input types. | 
| Whether the upstream system is using the latest SDK | Make sure that the content provider is using the latest version of the [AWS CDI SDK](https://aws.amazon.com/media-services/resources/cdi/) on their upstream CDI source device. | 
| Whether the source content is a stream or VOD asset | Find out if the source content is a live stream or a VOD asset.Make sure that MediaLive supports the delivery for the format that you identified. See the table in [Support for live and file sources](inputs-live-vs-file.md).  | 
| Whether the content is encrypted | MediaLive can ingest encrypted content only from HLS content.If the source content is HLS and it is encrypted, make sure that it is encrypted in a format that MediaLive supports. See [Handling encrypted source content in an HLS source](planning-hls-input-encrypted.md). If MediaLive doesn't support the available encryption format, find out if you can obtain the content in unencrypted form. | 
| Only if the source content is RTP, whether it includes FEC. |  We recommend that the source content include FEC because it is less likely to result in an output that has visual disruptions.  |