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A delta file is used to determine the differences (or delta change) from the main file and the file containing the changes.<br />
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<a href="http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1277577,00.html" rel="ugc">http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1277577,00.html</a><br />
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A delta file is used to determine the differences (or delta change) from the main file and the file containing the changes.

http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1277577,00.html [http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1277577,00.html]



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To retain all the changes made to the system that was contained in those snapshots, yes. You best bet would be to see if you can restore them some how and then follow the instructions in the link I provided to commit the delta changes to the main file. <br />
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If you have no way of recovering the files then I believe it is still possible to get the VM working again by modifying the .vmx file. I haven't found it yet but I believe there is a way to make it think there never were any snapshots and then it will go back to the state it was in since you last merge.
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To retain all the changes made to the system that was contained in those snapshots, yes. You best bet would be to see if you can restore them some how and then follow the instructions in the link I provided to commit the delta changes to the main file.

If you have no way of recovering the files then I believe it is still possible to get the VM working again by modifying the .vmx file. I haven't found it yet but I believe there is a way to make it think there never were any snapshots and then it will go back to the state it was in since you last merge.

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I have this question open: <a href="https://www.experts-exchange.com/questions/24372329/VMWare-snapshots-migrato.html?anchorAnswerId=24279829#a24279829" rel="ugc">https://www.experts-exchange.com/questions/24372329/VMWare-snapshots-migrato.html?anchorAnswerId=24279829#a24279829</a><br />
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I think some of these delta files may be the problem, but I'm not sure what a delta file is.
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I have this question open: http://www.experts-exchange.com/Software/VMWare/Q_24372329.html#a24279829

I think some of these delta files may be the problem, but I'm not sure what a delta file is.

Easy 500: What is a VMWare Delta file

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.