UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                    Washington, D.C. 20549

                         SCHEDULE 13G

               Under the Securities Exchange Act of 1934

                      (Amendment No.2)*

               MassMutual Corporate Investors
_________________________________________________________________
                       (Name of Issuer)

                         Common Stock
_________________________________________________________________
                  (Title of Class of Securities)

                          576292106
_________________________________________________________________
                        (CUSIP Number)

                       December 31, 2000
_________________________________________________________________
       (Date of Event Which Requires Filing of This Statement)

Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:

[X] Rule 13d-1(b)

[ ] Rule 13d-1(c)

[ ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to the
subject class of securities, and for any subsequent amendment
containing information which would alter the disclosures in a
prior cover page.

The information required in the remainder of this cover page shall
not be deemed to be "filed" for the purpose of Section 18 of the
Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act but shall be subject to all
other provisions of the Act (however, see the Notes).









                                        Page 1 of 4 Pages


CUSIP No. 576292106
__________________________________________________________________
1.   Name of Reporting Person:

     MassMutual Life Insurance Company
     I.R.S. Identification No. of above person:  02-1590850
__________________________________________________________________

2.   Check the Appropriate Box if a Member of a Group: N/A
__________________________________________________________________

3.   SEC Use Only
__________________________________________________________________

4.   Citizenship or Place of Organization:

          Commonwealth of Massachusetts
__________________________________________________________________

Number of           5. Sole Voting Power:      859,993 Shares
Shares Beneficially
                    ______________________________________________
Owned by Each       6. Shared Voting Power:       0    Shares
Reporting Person
                    ______________________________________________
With:               7. Sole Dispositive Power: 859,993 Shares

                    ______________________________________________
                    8. Shared Dispositive Power   0    Shares

__________________________________________________________________

9.  Aggregate Amount Beneficially Owned by Each Reporting
    Person:
                    859,993 Shares

MassMutual holds a $20,000,000 Senior Fixed Rate Convertible Note
which is convertible into an equivalent dollar amount of common
shares.
__________________________________________________________________

10.  Check if the Aggregate Amount in Row (9) Excludes
     Certain Shares (See Instructions)
                                   N/A
__________________________________________________________________

11.  Percent of Class Represented by Amount in Row (9): 9.1%
__________________________________________________________________

12.       Type of Reporting Person:     IC




                                              Page 2 of 4 Pages


Item 1. (a) Name of Issuer:

            MassMutual Corporate Investors

        (b  Address of Issuers Principal Executive Offices:
            1295 State Street
            Springfield, MA  01111

Item 2. (a) Name of Person Filing:

            MassMutual Life Insurance Company

        (b) Address of Principal Business Office:

            1295 State Street
            Springfield, MA   01111

        (c) Citizenship: Organized under the laws of the Commonwealth of
                         Massachusetts

        (d) Title of Class of Securities:

            Common Shares, par value $1.00

        (e) CUSIP Number:   576292106

Item 3. If this statement is filed pursuant to 240.13d-1(b) or
        240.13d-2(b) or (c), person filing is:

       (c) An Investment Adviser in accordance with
           240.13d1(b)(1)(ii)(E)

Item 4. Ownership

        (a) Amount beneficially owned:     859,993 Shares
        (b) Percent of class:               9.1%
        (c) Number of shares as to which the person has:

          (i)   Sole power to vote or to direct the vote: 859,993
                Shares
          (ii)  Shared power to vote or to direct the vote: 0 shares
          (iii) Sole power to dispose or to direct the disposition of:
                859,993 Shares
          (iv)  Shared power to dispose or to direct the disposition of: 0
                Shares

Item 5.        Ownership of Five Percent or Less of a Class: N/A

Item 6.        Ownership of More than Five Percent on Behalf of
               Another Person: N/A

Item 7.        Identification and Classification of the Subsidiary Which
               Acquired the Security Being Reported on by the Parent Holding
               Company:  N/A
                                                       Page 3 of 4 Pages


Item 8.   Identification and Classification of Members of the
          Group: N/A

Item 9.   Notice of Dissolution of the Group: N/A

Item 10.  Certification

By signing below I certify that, to the best of my knowledge and
Belief, the securities referred to above were acquired and are held in the
ordinary course of business and were not acquired and are not held
for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired
and are not held in connection with or as a participant in any
transaction having that purpose or effect.

After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement is
true, complete and correct.


February 7, 2001


//Stephen Kuhn//



Stephen Kuhn
Senior Vice President and
Deputy General Counsel




















                                        Page 4 of 4 Pages