Dreamweaver & Microsoft Office cannot open files on target disk

Question

I've set up my Macbook in Target Disk Mode and connect it via Thunderbolt cable to my iMac. (I'm trying to use the Macbook as a storage drive so I can use the iMac's screen, keyboard & mouse but not use up the hard drive space.) I'm able to access folders and files on the target disk (Macbook) from my iMac when programs like Keynote or Pages try opening them, but for some reason when I try to open the same files using Dreamweaver, Excel, Word and PowerPoint, I get messages like:
"PowerPoint cannot open the file /Volumes/Macintosh HD 1/Users/[file path]...The file may be corrupt, in use, not a type recognized by PowerPoint, or the file extension may not match the internal format of the file."
Or:
"Word cannot open this document. The document might be in use, the document might not be a valid Word document, or the file name might contain invalid characters (for example, \/)."
Please keep in mind the files I am trying to open are .html, .doc, .docx, .pptx, .xlsx files, etc. So they should be opening easily with Dreamweaver & MS Office. Also, when I copy the files I want to open from the target disk and paste them onto my iMac, I am able to easily open them with Dreamweaver & MS Office. It's only when I try opening them directly from the target disk that I run into issues.
One more thing adding to my confusion is that when I use a Windows VM via Citrix Receiver to access my files on the target disk, I'm able to save & edit the target disk files with no problem.
Any idea what could be happening to cause this? Here are the specs of my machines below:
iMac specs:
OS X v10.9.4
Processor: 2.9 GHz Intel Core i5
Memory: 8GB 1600 MHz DDR3
MS Office 2011 v14.4.3
Dreamweaver CS6 v12.0
Macbook specs:
OS X v10.9.4
Processor: 2.8 Ghz Intel Core i7
Memory: 16GB 1600 MHz DDR 3
Thanks!

Answer 1

I believe I've solved this problem. It looks like even though a 1 was being added to the target disk's name (Macintosh HD 1), my iMac ignored it and looked for the files I was trying to open on its own hard drive. I changed the name of my target disk to "Macbook Macintosh HD 1" and I can now open my files.