In SDL Tridion 2013 sp1 when you try to publish two distinct multimedia components to pubish to the same location, then Tridion will refuse to deploy the second item. Instead, you’ll get some cryptic message like: "Committing Deployment Failed Phase: Deployment Prepare Commit Phase failed.Unable to prepare transaction: tcm:0-4445-66560"
You have to dig deeper in the deployer log to find the actual error which is like this "2015-01-07 15:02:25,088 WARN PreCommitPhase - Failed to Prepare: tcm:0-4445-66560 error:Attempting to deploy a binary 8029 to a location where a different binary is already stored Existing binary: 8030:
Is there any configuration in SDL Tridion 2013 sp1 which can be switched on, so that the detailed error is visible in the transaction work flow when you click on the "failed" button ?