Thanks.

I made an ISO image and then tried to mount it with MagicISO....but I got a message saying it needed to access the original disc. So it makes me wonder whether MB has done something that prevents an ISO image from being usable.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife