It doesn't matter so long as you get what you want, without corruptions or whatever. Modem users, though slow, often have very hard to get files or just add to thecomibined hosts downlds when downding from multiple hosts.
BTW See the following link & follow “ALL” the off-shoot links to find hints & extra skills to help solve your problem: To continue files downlding (click on link)
Beware that on dial up, your options & abilities are limited. Don't resume/Find sources on more than one/2 files at one time. Else you'll affect your net connection, etc.