LiveCycle ES Update 1 can be downloaded on a trial basis from here (need a freely obtainable Adobe ID). The downloads are between 2 and 3.5 GB. Depending on your Internet bandwidth, you should expect to get a throughput of about 1 GB/hour from the Akamai download. Longer download times increase the risk of corrupt or incomplete downloads. To help you verify that the downloaded file is not corrupt, Adobe provides the MD5 (Message Digest algorithm version 5) checksums here (PDF).
It is a very good idea to verify the integrity of the downloaded file before running the install.
1) Login with your free Adobe ID
2) Agree to the EULA (End User License Agreement)
3) Choose the appropriate download option
4) Also download the checksum file
Once the download is complete, download an MD5 checksum generator such as md5deep
1) Run it against the downloaded LiveCycle zip file with the following command:
md5deep -ze C:\TEMP\JBoss_EFGJ_DVD.zip
You should get an output such as this:
2923744940 60da1ec0664f014aad93f9d99e94350c C:\TEMP\JBoss_EFGJ_DVD.zip
The middle number is the MD5 checksum (60da1ec0664f014aad93f9d99e94350c). Compare it against the value in the Adobe Checksum PDF file. If they match exactly, you have a downloaded file that is not corrupt.
md5deep usage instructions are available here. You can also use the following command to get the command line arguments:
md5deep -help