Invalid Character in base64 string with XML

[karabaja]

I am getting an error that I'm sad to say that I don't know much about dealing with 64base strings. Currently I've tracked down this error to this line of code: \[code\]byte[] jobData = http://stackoverflow.com/questions/14616884/Convert.FromBase64String(base64JobData);\[/code\]Here is my XML, that is being passed into the base64JobData but I can't seem to find anything that should throw this error.\[code\]<?xml version="1.0" encoding="utf-16"?><JobItem xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="SiteServerItemShareCollection" JobName="0005_Hi" JobTargetResultId="2a59cf11-c58e-4cdc-80e8-7b4c70b940dc" JobId="5a79a30f-3250-4401-b181-f6e5f16fe5ef" JobItemType="NetworkShare" JobProcessWorkflowId="9834e3a5-b508-405f-ad5b-d8c9d1837982" Priority="1" CallbackConversationId="fb501b7b-cd43-4883-bbc7-5a356e1dd030" IsAudit="false" IsRemediation="false" IsArchive="true" IsPreview="false" ReportOnNonResponsiveData="http://stackoverflow.com/questions/14616884/false" CustodianId="00000000-0000-0000-0000-000000000000" IsCompleted="false" HasCredentials="true" MinSecondsBetweenAttempts="600" UseRedirectedAcquisition="false" IsSerialProcessing="false" CanPhoneHome="false" AgentGuid="00000000-0000-0000-0000-000000000000" DynamicIPLocality="false" TaskId="00000000-0000-0000-0000-000000000000"><CollectionItemQueue ItemId="2a59cf11-c58e-4cdc-80e8-7b4c70b940dc" CollectionId="5a79a30f-3250-4401-b181-f6e5f16fe5ef" CollectionType="NetworkShare" Name="0005_Hi" ReferenceItemId="00000000-0000-0000-0000-000000000000" CollectionStatus="0"> <AssetCollectionStartDate xsi:nil="true" /> <PrescanStartDate xsi:nil="true" /> <LastCollectedFileSize xsi:nil="true" /> <NumberFilesCollected xsi:nil="true" /> <FilesCollectedSize xsi:nil="true" /> <CurrentFileSize xsi:nil="true" /> <TotalPossibleFilesToCollect xsi:nil="true" /> <TotalPossibleFileBytesToCollect xsi:nil="true" /></CollectionItemQueue><RunCollectionPreScan>false</RunCollectionPreScan><FileTransferRetryDelayInSeconds>900</FileTransferRetryDelayInSeconds><FileTransferRetryAttempts>3</FileTransferRetryAttempts><AssetCollectionStartDate xsi:nil="true" /><PrescanStartDate xsi:nil="true" /><LastCollectedFileSize xsi:nil="true" /><NumberFilesCollected xsi:nil="true" /><FilesCollectedSize xsi:nil="true" /><CurrentFileSize xsi:nil="true" /><TotalPossibleFilesToCollect xsi:nil="true" /><TotalPossibleFileBytesToCollect xsi:nil="true" /><JobTargetName>\\10.10.200.222\Evidence</JobTargetName><JobTargetId>fd0d6e98-7227-4589-b578-a8f0a88955c2</JobTargetId><JobResultId>00000000-0000-0000-0000-000000000000</JobResultId><FiltersXML><Filter SystemFiles="false" UnusedDiskArea="false" VolumeSlack="false" CollectArchiveContentOnly="true" CollectEncryptedFiles="false" UsePhysicalDrives="false" UseSearchWithAgent="false" UseSearchWithServer="false" AutoDrillDown="false" CollectNoExtensionFiles="false" IncludeDeletedFiles="false" SmartFileIdentification="false" xmlns="http://FilterSchema" /></FiltersXML><ResponsiveFilePath>\\10.10.200.222\E$\Cases\Jobs\Test\2013-01-30 15.46.46\Item_10.10.200.222Evidence\1</ResponsiveFilePath><CollectionAttemptBeginTime xsi:nil="true" /><CollectionAttemptEndTime xsi:nil="true" /><CollectAsCredentials /><Expiration>2013-03-01T15:46:45.797</Expiration><CollectionEncryption> <CollectionId>5a79a30f-3250-4401-b181-f6e5f16fe5ef</CollectionId> <EncryptionType>None</EncryptionType><CertificateId>00000000-0000-0000-0000-000000000000</CertificateId></CollectionEncryption></JobItem>\[/code\]Is there a easy way to figure out what the offending character is in this xml string? or a tool that can help me find why I am getting this failure.